CAPTCHA solver pricing is not directly comparable at face value because providers use different pricing models. A low nominal per-solve rate does not automatically mean lowest total cost — it depends on your volume, retry rate, and the model structure.
This article breaks down the four pricing models in use and shows effective cost comparisons at different daily volume levels.
The Four Pricing Models
1. Pay Per Solve
You pay for each successfully completed solve. Failed tasks (unsolvable, timeout) are typically not charged.
Providers using this model: 2Captcha, Anti-Captcha, CapMonster Cloud, DeathByCaptcha, NextCaptcha, CapSolver (partial)
Best for: Low volume, variable demand, testing, pipelines where task rate fluctuates significantly.
Watch out for: High retry rates inflate effective cost. A 77% success rate at $0.002/solve costs the same as $0.0026/successful solve — not $0.002.
2. Thread-Based Subscription
You purchase N concurrent solving threads. Each thread can process one task at a time with no per-solve billing. Monthly fee covers unlimited volume through those threads.
Providers using this model: CaptchaAI
Best for: High sustained volume with predictable demand. The per-solve equivalent cost drops as volume increases.
Watch out for: Under-utilizing purchased threads means you are paying for unused capacity. Accurately forecast your volume before committing.
3. Volume Tiers / Discounted Per Solve
Standard pay-per-solve but with lower effective rates at higher volume bands.
Providers using this model: CapSolver (progressive pricing), NopeCHA (request-count subscriptions)
Best for: Growing volume — start at standard rates, automatically benefit from lower rates as volume scales.
4. Credit Packs / Deposits
You purchase prepaid credit which is drawn down per solve. Rates are fixed within the credit pack.
Providers using this model: DeathByCaptcha, various others
Best for: Predictable budgeting with pay-per-solve flexibility.
Effective Cost Comparison by Volume
Note: rates below are approximate and based on published provider pricing. Verify current rates directly with each provider.
Low Volume: 1,000 solves/day (~30,000/month)
| Provider | Model | Rate (reCAPTCHA v2) | Monthly Cost |
|---|---|---|---|
| 2Captcha | Pay per solve | ~$0.001 | ~$30 |
| Anti-Captcha | Pay per solve | ~$0.001 | ~$30 |
| CapMonster Cloud | Pay per solve | ~$0.001 | ~$30 |
| CaptchaAI | Thread subscription | Varies by plan | Check captchaai.com |
| CapSolver | Pay per solve | ~$0.001 | ~$30 |
At low volume, pay-per-solve providers are similar and subscription models may not offer cost advantages.
Medium Volume: 10,000 solves/day (~300,000/month)
| Provider | Model | Effective Rate | Monthly Cost |
|---|---|---|---|
| 2Captcha | Pay per solve | ~$0.001 | ~$300 |
| Anti-Captcha | Pay per solve | ~$0.001 | ~$300 |
| CaptchaAI | Thread subscription | Low at this volume | Check captchaai.com |
| CapSolver | Volume discount | ~$0.0008 | ~$240 |
At medium volume, thread-based subscriptions begin to compete meaningfully with per-solve pricing.
High Volume: 100,000+ solves/day
| Provider | Likely Best Model | Notes |
|---|---|---|
| CaptchaAI | Thread subscription | Flat monthly cost; scales well |
| CapSolver | Volume discount | Aggressive volume discounts available |
| 2Captcha | Pay per solve (high cost) | $100K/day at $0.001 = $100/day, $3,000/month |
At high volume, subscription and tiered models offer the lowest effective cost.
Pricing by CAPTCHA Type
Rates vary by challenge complexity:
| CAPTCHA Type | Typical Range |
|---|---|
| Image text / OCR | $0.0002–0.001 |
| reCAPTCHA v2 | $0.001–0.003 |
| reCAPTCHA v3 | $0.002–0.003 |
| Cloudflare Turnstile | $0.001–0.002 |
| hCaptcha | $0.0007–0.002 |
| GeeTest | $0.001–0.003 |
| FunCaptcha | $0.001–0.003 |
Image OCR is cheapest. Enterprise and specialist types (FunCaptcha, GeeTest) tend to be at the higher end.
True Cost Per Successful Solve
Nominal pricing does not reflect true cost. Success rate adjusts effective cost:
$$\text{Effective cost} = \frac{\text{Rate per attempt}}{1 - \text{failure rate}}$$
Example: Provider A charges $0.001 per attempt with 98% success rate. $$\frac{\$0.001}{0.98} = \$0.00102 \text{ per successful solve}$$
Provider B charges $0.0008 per attempt with 77% success rate. $$\frac{\$0.0008}{0.77} = \$0.00104 \text{ per successful solve}$$
Nearly identical true cost — despite the 20% pricing difference.
Minimum Deposits and Trial Accessibility
| Provider | Minimum Deposit | Free Trial |
|---|---|---|
| 2Captcha | $1 | No |
| Anti-Captcha | $10 | No |
| CapMonster Cloud | ~$5 | Yes (limited) |
| CaptchaAI | N/A (subscription) | Free tier |
| CapSolver | $5 | Limited |
| NopeCHA | N/A (subscription) | Free tier |
For testing, 2Captcha's $1 minimum and CaptchaAI's free tier are the most accessible entry points.
FAQ
Which provider is cheapest? It depends on volume and model. At low volume, per-solve providers (2Captcha, Anti-Captcha) are similar. At high volume, CaptchaAI's thread model or CapSolver's volume discounts typically win on effective cost per successful solve.
Does CaptchaAI offer pricing information publicly? Yes. Current plan pricing is listed at captchaai.com. Thread counts and plan features are detailed on the pricing page.
Are there free CAPTCHA solvers? There are limited free tiers (NopeCHA, CapMonster Cloud). Fully free solving is not sustainable for production use. See Free vs Paid CAPTCHA Solvers for a detailed breakdown.
Do pricing structures change frequently? Pricing does change. Always verify current rates from the provider directly before budgeting. CaptchaRank links to official pricing pages from each solver's profile.
Compare full pricing at captcharank.com/compare.
