CaptchaKrakenThe Most Powerful Open Source
Captcha Solver in Existence
Five lines of code to solve nearly all captchas.
Sign in with GitHub. No card, no minimum.
Opens on nine separate photos with no fixed answer count. hCaptcha almost always asks a second, different puzzle before it lets you through.
Recorded 2026-08-19 against CaptchaKraken v1.2 Twilight, with our Camoufox fork driving CaptchaKraken. A solve rate with no date is a boast.
The models0 m → 6,000 m
Free and open weight models, or let us host it.
Sunlight
The adapter merged down to 4-bit. Runs on a card you already own.
- Base
- Qwen3.5-9B
- Precision
- 4-bit (AWQ)
- Weights
- ~11 GB · min 14 GB VRAM
- Runs in
- vLLM, Ollama, transformers, SGLang, LM Studio
Twilight
The adapter merged down to 8-bit. Self-host it, or let us run it.
- Base
- Qwen3.5-9B
- Precision
- 8-bit (FP8)
- Weights
- ~13 GB · min 22 GB VRAM
- Runs in
- vLLM, Ollama, transformers, SGLang
Abyss
In training. Hosted only when it lands — not published, not downloadable.
- Base
- Custom architecture based on Qwen
- Endpoint
- api.captchakraken.com
A solve that takes more than a few seconds reads as automated on its own. Pick a card that keeps you under a second, or let us run it.
The adapter, CaptchaKraken/CaptchaKraken-Lora-v1.2, is public, and Sunlight and Twilight are that adapter merged into the base and quantised, so there is one file to download and no LoRA plumbing. The hosted endpoint answers with CaptchaKraken v1.2 Twilight — the same artifact, on our GPUs. Self-hosting is free and stays free — see the repository for the licence.
Hosted API
Fast, reliable hosting with no setup.
Two environment variables. If your client already speaks OpenAI, that is the integration.
# same client, same request shape — only the endpoint moves
export CAPTCHA_KRAKEN_API_KEY=ck_live_…
export VLLM_BASE_URL=https://api.captchakraken.com/v1We pay for our own misses
If we under-select and the puzzle has to be retried for that, the retry costs you nothing.
One attempt can't run away
Past the cap, a captcha that refuses to settle keeps being served. Free.
The request shape, the two prompts, the headers and the error codes are in the docs.
Pricing
What it costs.
| Image | 1–2 | $0.30 |
|---|---|---|
| Video | 1–2 | $1.00 |
| Checkbox · Turnstile | 0 | Free |
Any amount from $5. Billed per response. Credits never expire.