Best AI captcha solving service: testing data

Best AI captcha solving service

A captcha solving service should not be selected by response speed alone.

In real automation workflows, the more important questions are:

• how often the service returns a correct answer;
• how stable answer delivery is;
• which captcha types the service supports;
• how easy the API integration is;
• whether difficult tasks can be handled through fallback processing.

This matters most when captcha is not a one-time check, but part of a longer automation flow:

• web scraping;
• data collection;
• browser automation;
• QA and testing;
• account workflows;
• anti-bot and WAF-protected environments;
• API integrations.

A fast wrong answer does not help. It still breaks the workflow: the task has to be retried, the session may reset, recovery logic becomes more complex, and total processing time increases.

This comparison is based on data from CaptchaTheCat, which tracks performance metrics for popular captcha solving services. The article reviews:

• 2Captcha;
• SolveCaptcha;

CapSolver;

• CapMonster Cloud;
• Anti-Captcha;
• DeathByCaptcha as market context.

DeathByCaptcha is not included in the detailed numeric sections below because the updated table does not contain comparable rows for it.

Across the updated data, 2Captcha looks like the most balanced option for broad automation workflows. It does not win every single category. CapSolver is very strong in Cloudflare Turnstile and Amazon WAF AWS captcha. Anti-Captcha leads in image-based captcha. SolveCaptcha wins Cloudflare Challenge and remains close in several popular task types.

But for a universal production workflow, the key factor is not one isolated win. The key factor is stable performance across different captcha types, combined with API readiness, SDKs, GitHub resources, callbacks, documented limits, and fallback processing for difficult tasks.

What data was used

The comparison uses four main parameters.

• avg recognition time: Average time to receive an answer.
• received %: The share of tasks where the service returned a result.
• correctly solved %: The share of tasks solved correctly.
• avg bid per 1000: The price indicator per 1000 tasks within the research.

There are two important interpretation rules.

First: a row with correctly solved % = 0 should not be treated as successful, even if the average response time is low.

Second: avg bid per 1000 = 0 should not automatically be read as a free price. It may also mean missing data.

Why speed is not the main criterion

In automation, a wrong answer often costs more than a delay.

If a service quickly returns an incorrect answer, the workflow still cannot continue. This creates additional costs:

• resubmitting the task;
• reloading the captcha;
• restarting the browser session;
• changing the proxy;
• adding more error handling;
• reducing total throughput;
• manual debugging.

That is why captcha solving services should be evaluated in this order.

1. Correctly solved %

This shows how often the answer is actually correct.

2. Received %

This shows how consistently the service returns a result.

3. Avg recognition time

This shows how long the answer takes.

4. Avg bid per 1000

This shows whether the price makes sense after quality and stability are checked.

Speed should be compared only after correctness and stability. Otherwise, you may choose a service that answers quickly but breaks the real workflow too often.

Which captcha types were compared

The updated data covers the main task types that appear in automation.

reCAPTCHA v2

Easy, moderate, and hard reCAPTCHA v2 tasks.

reCAPTCHA v3

Token-based scenarios with risk scoring.

Image / Picture captcha

Tasks with image selection or image recognition.

Amazon WAF AWS captcha

Captcha tasks related to Amazon WAF protection.

Arkose Labs / FunCaptcha

Interactive Arkose Labs and FunCaptcha tasks.

Cloudflare Turnstile

Cloudflare Turnstile checks.

Cloudflare Challenge

Cloudflare Challenge tasks.

This range is needed for a fair comparison. One service may be strong on reCAPTCHA v2 but weaker on image-based captcha. Another may be fast on Turnstile but less stable on Arkose / FunCaptcha.

That is why the overall conclusion cannot be based on one captcha type only.

2Captcha and SolveCaptcha: close overall quality, different speed profile

Across the rows shown in the updated table, 2Captcha and SolveCaptcha remain close by average correctness.

2Captcha

• Average correctly solved rate: 93.11%
• Average received rate: 97.22%
• Average recognition time: 9.36 sec
• Average bid per 1000: 2.08

SolveCaptcha

• Average correctly solved rate: 92.44%
• Average received rate: 97.67%
• Average recognition time: 25.67 sec
• Average bid per 1000: 0.91

This is a simple average across the listed rows, not a weighted production benchmark.

2Captcha is ahead by average correctness and much faster across the updated rows. SolveCaptcha has a slightly higher average received rate and a lower price indicator.

But average numbers are still not enough for real integration. Developers also need:

• a clear API;
• SDKs;
• integration examples;
• error handling;
• callbacks;
• debugging tools;
• transparent limits;
• fallback processing for difficult tasks.

Based on the full integration profile, 2Captcha remains the stronger universal option for production automation workflows.

Overall picture by captcha type

The results do not show one service winning every category.

2Captcha delivers steady results across different task types. SolveCaptcha is close in several categories and wins Cloudflare Challenge. CapSolver leads in Cloudflare Turnstile and performs very strongly on Amazon WAF AWS captcha. Anti-Captcha leads in image-based captcha and also performs strongly on Turnstile and Amazon.

But if you need one service for mixed production workflows, balance matters most.

Across the combined factors, 2Captcha looks stronger: recognition quality, coverage, API, SDKs, GitHub resources, callbacks, documented limits, and fallback handling give it a more stable base for production integration.

reCAPTCHA v2: 2Captcha has the strongest overall profile

For reCAPTCHA v2, the research compared three difficulty levels: easy, moderate, and hard.

reCAPTCHA v2 Easy

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 3.27 sec

SolveCaptcha

• Correctly solved: 99%
• Received: 99%
• Average time: 4.01 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 19 sec

CapMonster Cloud

• Correctly solved: 93%
• Received: 99%
• Average time: 21 sec

Anti-Captcha

• Correctly solved: 41%
• Received: 99%
• Average time: 66 sec

For reCAPTCHA v2 Easy, 2Captcha and SolveCaptcha are tied by correctness and received rate, but 2Captcha is faster.

reCAPTCHA v2 Moderate

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 16 sec

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 4 sec

CapMonster Cloud

• Correctly solved: 99%
• Received: 99%
• Average time: 28 sec

SolveCaptcha

• Correctly solved: 98%
• Received: 99%
• Average time: 40 sec

Anti-Captcha

• Correctly solved: 43%
• Received: 99%
• Average time: 73 sec

For reCAPTCHA v2 Moderate, CapSolver has the best correctness and received rate. 2Captcha is one point lower by correctness, but much faster.

reCAPTCHA v2 Hard

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 15 sec

CapMonster Cloud

• Correctly solved: 99%
• Received: 98%
• Average time: 28 sec

SolveCaptcha

• Correctly solved: 98%
• Received: 99%
• Average time: 40 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 21 sec

Anti-Captcha

• Correctly solved: 40%
• Received: 99%
• Average time: 75 sec

For reCAPTCHA v2 Hard, 2Captcha has the strongest result: 99% correctly solved, 99% received, and a lower average time than the other high-correctness services.

Overall, 2Captcha has the strongest reCAPTCHA v2 profile across the three difficulty levels. CapSolver wins the moderate row, but 2Captcha is more consistent across easy, moderate, and hard tasks.

reCAPTCHA v3: 2Captcha leads by correctness

reCAPTCHA v3 is different from reCAPTCHA v2. The result depends not only on solving the task, but also on token quality and risk scoring. High speed alone does not guarantee the best outcome.

2Captcha

• Correctly solved: 98%
• Received: 99%
• Average time: 5 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 5.01 sec

Anti-Captcha

• Correctly solved: 97%
• Received: 100%
• Average time: 18 sec

SolveCaptcha

• Correctly solved: 96%
• Received: 99%
• Average time: 15 sec

CapMonster Cloud

• Correctly solved: 96%
• Received: 97%
• Average time: 5.08 sec

2Captcha shows the best correctness result in this group. CapSolver and Anti-Captcha are close, with stronger received rates, but 2Captcha has the highest correctly solved percentage and one of the fastest response times.

Amazon WAF AWS captcha: 2Captcha and CapSolver are the strongest options

Amazon WAF AWS captcha is useful for comparison because it moves the analysis beyond standard reCAPTCHA scenarios.

2Captcha

• Correctly solved: 100%
• Received: 98%
• Average time: 4 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 5.50 sec

Anti-Captcha

• Correctly solved: 100%
• Received: 100%
• Average time: 30 sec

CapMonster Cloud

• Correctly solved: 100%
• Received: 93%
• Average time: 23 sec

SolveCaptcha

• Correctly solved: 97%
• Received: 98%
• Average time: 36 sec

The updated Amazon WAF AWS captcha data is not a parity between 2Captcha and SolveCaptcha.

2Captcha, CapSolver, Anti-Captcha, and CapMonster Cloud all show 100% correctness. Among them, 2Captcha is the fastest, while CapSolver combines 100% correctness with 100% received rate. SolveCaptcha is lower by correctness and slower in this category.

Arkose Labs / FunCaptcha: 2Captcha and SolveCaptcha are tied by correctness

Arkose and FunCaptcha are often more complex than simple token-based tasks. They may involve interactive checks, unusual page states, and higher dependence on the exact browser scenario.

2Captcha

• Correctly solved: 91%
• Received: 84%
• Average time: 30 sec

SolveCaptcha

• Correctly solved: 91%
• Received: 88%
• Average time: 50 sec

CapMonster Cloud

• Correctly solved: 81%
• Received: 54%
• Average time: 47 sec

In Arkose Labs / FunCaptcha, 2Captcha and SolveCaptcha are tied by correctness. SolveCaptcha has a higher received rate, while 2Captcha is faster. CapMonster Cloud is lower by both correctness and answer delivery stability.

This is a good example of why the overall winner does not need to win every individual category. The category itself has trade-offs.

Cloudflare Turnstile: CapSolver leads, 2Captcha is the fastest

Cloudflare Turnstile matters for automation because it often appears in protected web environments.

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 17 sec

Anti-Captcha

• Correctly solved: 99%
• Received: 100%
• Average time: 30 sec

CapMonster Cloud

• Correctly solved: 97%
• Received: 99%
• Average time: 12 sec

2Captcha

• Correctly solved: 96%
• Received: 99%
• Average time: 4 sec

SolveCaptcha

• Correctly solved: 93%
• Received: 99%
• Average time: 14 sec

For Cloudflare Turnstile, CapSolver has the best correctness and received rate. Anti-Captcha is close by correctness, but slower. 2Captcha is not the category winner by correctness, but it is the fastest service in this row and performs better than SolveCaptcha.

Cloudflare Challenge: SolveCaptcha is slightly ahead

Cloudflare Challenge shows a different result.

SolveCaptcha

• Correctly solved: 97%
• Received: 100%
• Average time: 14 sec

2Captcha

• Correctly solved: 95%
• Received: 100%
• Average time: 14 sec

In Cloudflare Challenge, SolveCaptcha is slightly ahead: 97% correctly solved tasks versus 95% for 2Captcha.

At the same time, both services return answers in 100% of cases and show the same average time: 14 seconds.

This example shows why the overall conclusion cannot be built on one category. SolveCaptcha is stronger in Cloudflare Challenge, but 2Captcha remains the more balanced option in the overall comparison.

Image / Picture captcha: Anti-Captcha shows the best result

Image-based captcha is a weaker category for several services.

Anti-Captcha

• Correctly solved: 71%
• Received: 99%
• Average time: 15 sec

SolveCaptcha

• Correctly solved: 63%
• Received: 98%
• Average time: 18 sec

2Captcha

• Correctly solved: 61%
• Received: 98%
• Average time: 5 sec

CapMonster Cloud

• Correctly solved: 40%
• Received: 99%
• Average time: 1.53 sec

CapSolver

• Correctly solved: 15%
• Received: 99%
• Average time: 0.70 sec

Anti-Captcha leads in Image / Picture captcha. SolveCaptcha is slightly ahead of 2Captcha by correctness, while 2Captcha is much faster. CapMonster Cloud and CapSolver are very fast, but their correctness is much lower.

One image-based category should not define the overall conclusion across all automation scenarios, but it is important if your workflow depends heavily on this type of captcha.

2Captcha vs CapSolver: balance versus category wins

CapSolver often shows strong speed and, in some rows, excellent correctness. The updated data gives CapSolver several real category wins, especially in Cloudflare Turnstile, Amazon WAF AWS captcha, and reCAPTCHA v2 Moderate.

But the full comparison is more nuanced. CapSolver is not simply “fast but inaccurate.” It is strong in some modern token and WAF-related tasks, but much weaker in Image / Picture captcha.

reCAPTCHA v2 Easy

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 3.27 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 19 sec

2Captcha has higher correctness and is much faster. CapSolver has a slightly higher received rate.

reCAPTCHA v2 Moderate

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 4 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 16 sec

CapSolver wins by correctness and received rate. 2Captcha is much faster.

reCAPTCHA v2 Hard

2Captcha

• Correctly solved: 99%
• Received: 99%
• Average time: 15 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 21 sec

2Captcha has higher correctness and faster response time. CapSolver has a higher received rate.

reCAPTCHA v3

2Captcha

• Correctly solved: 98%
• Received: 99%
• Average time: 5 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 5.01 sec

2Captcha is slightly higher by correctness and slightly faster. CapSolver has a higher received rate.

Amazon WAF AWS captcha

2Captcha

• Correctly solved: 100%
• Received: 98%
• Average time: 4 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 5.50 sec

Both services show 100% correctness. 2Captcha is faster, while CapSolver has a stronger received rate.

Cloudflare Turnstile

2Captcha

• Correctly solved: 96%
• Received: 99%
• Average time: 4 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 17 sec

CapSolver wins by correctness and received rate. 2Captcha is much faster.

Image / Picture captcha

2Captcha

• Correctly solved: 61%
• Received: 98%
• Average time: 5 sec

CapSolver

• Correctly solved: 15%
• Received: 99%
• Average time: 0.70 sec

CapSolver is faster, but the correctness gap is too large. 2Captcha is much stronger in result quality here.

Main conclusion

CapSolver has real strengths in specific categories, especially Cloudflare Turnstile and Amazon WAF AWS captcha. However, 2Captcha looks more balanced across the full set of tasks.

For production automation, the better choice depends on the captcha mix. If the workflow is heavily Turnstile-focused, CapSolver deserves attention. If the workflow is mixed across several captcha types, 2Captcha remains the safer universal option.

SolveCaptcha vs CapSolver: SolveCaptcha is not always stronger

SolveCaptcha and CapSolver have different profiles.

In the older interpretation, SolveCaptcha looked stronger than CapSolver by correctness in several important rows. In the updated data, CapSolver is stronger in more categories than before, especially Amazon WAF AWS captcha, Cloudflare Turnstile, reCAPTCHA v2 Moderate, and reCAPTCHA v3.

reCAPTCHA v2 Easy

SolveCaptcha

• Correctly solved: 99%
• Received: 99%
• Average time: 4.01 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 19 sec

SolveCaptcha has higher correctness and is much faster. CapSolver has a higher received rate.

reCAPTCHA v2 Moderate

SolveCaptcha

• Correctly solved: 98%
• Received: 99%
• Average time: 40 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 16 sec

CapSolver wins clearly in this row: higher correctness, higher received rate, and faster response time.

reCAPTCHA v2 Hard

SolveCaptcha

• Correctly solved: 98%
• Received: 99%
• Average time: 40 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 21 sec

SolveCaptcha has slightly higher correctness, while CapSolver has better received rate and faster response time.

reCAPTCHA v3

SolveCaptcha

• Correctly solved: 96%
• Received: 99%
• Average time: 15 sec

CapSolver

• Correctly solved: 97%
• Received: 100%
• Average time: 5.01 sec

CapSolver wins this row.

Amazon WAF AWS captcha

SolveCaptcha

• Correctly solved: 97%
• Received: 98%
• Average time: 36 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 5.50 sec

CapSolver is significantly stronger in this category.

Cloudflare Turnstile

SolveCaptcha

• Correctly solved: 93%
• Received: 99%
• Average time: 14 sec

CapSolver

• Correctly solved: 100%
• Received: 100%
• Average time: 17 sec

CapSolver has much higher correctness and received rate. SolveCaptcha is slightly faster.

Image / Picture captcha

SolveCaptcha

• Correctly solved: 63%
• Received: 98%
• Average time: 18 sec

CapSolver

• Correctly solved: 15%
• Received: 99%
• Average time: 0.70 sec

SolveCaptcha is much stronger by correctness. CapSolver is faster, but the quality gap is too large.

Main conclusion

CapSolver is stronger than SolveCaptcha in several updated rows, especially Amazon WAF AWS captcha, Cloudflare Turnstile, reCAPTCHA v2 Moderate, and reCAPTCHA v3.

SolveCaptcha remains stronger in Image / Picture captcha and close in several reCAPTCHA v2 rows. It also wins Cloudflare Challenge against 2Captcha, although CapSolver is not present in that row in the updated table.

The better choice depends on the captcha type. For mixed automation, neither one should be judged by speed alone.

Pros and limitations of the services

2Captcha

Pros

• Best overall balance across the comparison.
• 99% correctness across all three reCAPTCHA v2 difficulty levels.
• Best correctness result in reCAPTCHA v3.
• Strong Amazon WAF AWS captcha result.
• Very fast response in several categories.
• Support for different captcha types.
• Captcha API.
• SDKs and GitHub resources.
• Callbacks.
• Test environment.
• Status page.
• Documented request limits.
• Fallback processing for difficult tasks.

Cons

• Price indicator is higher than some competitors in part of the tested scenarios.
• Not the category winner in Cloudflare Turnstile.
• Not the leader in Image / Picture captcha.

SolveCaptcha

Pros

• Strong AI solver profile.
• Good results across popular captcha types.
• Low price indicator in several scenarios.
• Strong result in Cloudflare Challenge.
• Good Image / Picture captcha result compared with most services.
• Competitive correctness across reCAPTCHA v2.

Cons

• Lower than 2Captcha by average correctness across the updated rows.
• Slower than 2Captcha across the updated rows.
• Weaker than CapSolver in Amazon WAF AWS captcha, Cloudflare Turnstile, reCAPTCHA v2 Moderate, and reCAPTCHA v3.

CapSolver

Pros

• Excellent Cloudflare Turnstile result.
• Strong Amazon WAF AWS captcha result.
• Best result in reCAPTCHA v2 Moderate.
• High speed in several rows.
• Strong received rate in multiple categories.

Cons

• Very weak Image / Picture captcha correctness in this dataset.
• Lower than 2Captcha in reCAPTCHA v2 Easy, reCAPTCHA v2 Hard, and reCAPTCHA v3 by correctness.
• Not present in the updated Cloudflare Challenge and Arkose / FunCaptcha rows.

CapMonster Cloud

Pros

• Strong result in reCAPTCHA v2 Moderate and Hard.
• Good Cloudflare Turnstile result.
• 100% correctness in Amazon WAF AWS captcha.
• Fast in several rows.

Cons

• Lower answer delivery stability in Arkose Labs / FunCaptcha.
• Lower received rate in Amazon WAF AWS captcha.
• Not the strongest overall option by combined coverage, stability, and integration factors.

Anti-Captcha

Pros

• Best result in Image / Picture captcha.
• Strong Cloudflare Turnstile result.
• 100% correctness and 100% received rate in Amazon WAF AWS captcha.
• Strong reCAPTCHA v3 result.

Cons

• Weak reCAPTCHA v2 results in this comparison.
• Slower in several categories.
• Uneven results across different captcha types.

DeathByCaptcha

Pros

• Relevant for market context.

Cons

• The updated table does not contain comparable rows for detailed numeric analysis.

Why 2Captcha wins the overall comparison

2Captcha does not win because of one isolated row.

Its advantage comes from the combination of several factors:

• recognition quality;
• captcha type coverage;
• stable answer delivery;
• API readiness for integration;
• SDKs;
• GitHub resources;
• callbacks;
• test environment;
• status page;
• documented request limits;
• fallback processing for difficult tasks.

2Captcha provides a JSON API v2 with createTask and getTaskResult methods. It also provides integration materials that make the service useful not only for one-time captcha solving, but also for stable production workflows.

Architecture matters too.

2Captcha can be described as a hybrid captcha solving service: AI recognition is used as an important layer, while difficult cases can be routed to fallback processing. This fallback layer does not cancel the AI approach. In production workflows, it improves stability where a single automated layer may fail.

An AI service does not have to be AI-only

Comparisons of captcha solving services often use an overly simple frame: either a service is fully automated, or it is “not AI”.

For production tasks, that frame is not useful.

AI recognition works well on common high-volume tasks. But real workflows often include:

• non-standard interfaces;
• dynamic page states;
• complex visual checks;
• behavioral signals;
• session-bound tokens;
• WAF-protected scenarios;
• tasks where the result depends on session context.

In these cases, fallback processing does not contradict an AI-based architecture. It makes the system more resilient.

SolveCaptcha can be correctly described as an AI solver for captcha processing. The service focuses on automated recognition and shows strong results across popular captcha types.

In this comparison, SolveCaptcha looks like a strong standalone option. But 2Captcha remains the more balanced solution for mixed automation scenarios because it combines AI recognition, integration infrastructure, broad captcha type coverage, and fallback processing for complex tasks.

How to evaluate a service before integration

Before connecting a captcha solving service, evaluate working parameters rather than marketing claims.

Use this order.

Identify the captcha types in your workflow

Do not test only reCAPTCHA v2 if your real workflow also includes Turnstile, Arkose, Amazon WAF AWS captcha, or Image / Picture captcha.

Start with correctly solved %

A fast wrong answer is still an automation failure.

Then check received %

The service should not only solve tasks. It should also return results consistently.

Compare speed after quality

Average time matters only when correctness and stability are already acceptable.

Check the API

The API should fit your browser automation, scraping, QA, or data collection workflow.

Check SDKs and examples

SDKs, GitHub examples, and integration guides reduce implementation and debugging time.

Check callbacks and polling

A production system needs predictable task result handling.

Check test tools and service status

A test environment, status page, and documented limits help with debugging and operations.

Check fallback processing

Difficult tasks should not silently undermine workflow reliability.

Evaluate price after quality

A cheaper service is not cheaper if it creates more retries, failures, and engineering work.

Conclusion

If you need the fastest answer for one narrow captcha type, the best service may depend on the specific task.

If you need a universal captcha solving service for production automation workflows, 2Captcha looks like the strongest option in this comparison.

The reason is not one metric. The reason is balance: correctness, answer delivery stability, captcha type coverage, API readiness, SDKs, GitHub resources, callbacks, documented limits, and fallback processing for difficult cases.

SolveCaptcha is a strong AI solver. It is close to 2Captcha in several categories and wins Cloudflare Challenge in the updated data.

CapSolver is stronger than before in this updated dataset. It stands out in Cloudflare Turnstile, Amazon WAF AWS captcha, and reCAPTCHA v2 Moderate, but it performs poorly in Image / Picture captcha.

CapMonster Cloud and Anti-Captcha remain relevant competitors. Anti-Captcha stands out especially in Image / Picture captcha, Cloudflare Turnstile, and Amazon WAF AWS captcha.

But for mixed working scenarios, the safest choice is usually the service that performs consistently across different captcha types and is easier to integrate into a stable production system.

In this comparison, that service is 2Captcha.

API documentation: https://2captcha.com/api-docs

GitHub: https://github.com/2captcha