GeeTest vs reCAPTCHA

GeeTest uses interactive puzzles — slide, icon click, word match. reCAPTCHA uses image grids (v2) or invisible scoring (v3). Both are widely deployed, but they differ significantly in how they detect bots and what parameters are needed for solving.

Feature comparison

Feature	GeeTest v3	reCAPTCHA v2	reCAPTCHA v3
Challenge type	Slide/icon/word puzzles	Image grid selection	None (invisible)
Behavioral analysis	Mouse trajectory, speed curves	Mouse/keyboard, cookies	Continuous monitoring
Parameters needed	gt, challenge, pageurl	googlekey, pageurl	googlekey, action, pageurl
Response format	challenge, validate, seccode	Single token	Single token + score
Geographic focus	China, Asia, growing globally	Global	Global
Free tier	Limited	Yes	Yes
Dynamic parameters	challenge changes per session	Static sitekey	Static sitekey

Detection approach

GeeTest

Analyzes how you interact: slide speed, acceleration curves, micro-corrections
Checks for perfectly linear mouse movement (bot indicator)
Validates timing — too fast or too consistent = bot
Inspects browser environment for automation signals

reCAPTCHA

Analyzes behavioral patterns over time (v3 continuous scoring)
Uses Google cookies for user reputation
Checks IP reputation against Google's database
v2 adds visual challenge as secondary verification

Solving complexity

Aspect	GeeTest v3	reCAPTCHA v2	reCAPTCHA v3
Parameter extraction	Medium (must fetch gt + challenge)	Easy (static sitekey)	Easy (static sitekey + action)
API method	`method=geetest`	`method=userrecaptcha`	`method=userrecaptcha` + `version=v3`
Solve time	15–30s	15–30s	5–10s
Response parsing	Complex (3 values)	Simple (1 token)	Simple (1 token)
Challenge reuse	No (single-use challenge)	N/A (token-based)	N/A (token-based)

Solving with CaptchaAI

GeeTest v3

# Must fetch fresh challenge first
params = requests.get("https://example.com/api/captcha").json()

resp = requests.get("https://ocr.captchaai.com/in.php", params={
    "key": API_KEY, "method": "geetest",
    "gt": params["gt"], "challenge": params["challenge"],
    "pageurl": URL, "json": 1
}).json()

# Solution has 3 parts
solution = poll_result(resp["request"])
# solution = {geetest_challenge, geetest_validate, geetest_seccode}

reCAPTCHA v2

resp = requests.get("https://ocr.captchaai.com/in.php", params={
    "key": API_KEY, "method": "userrecaptcha",
    "googlekey": "6Le-wvkSAAAA...", "pageurl": URL, "json": 1
}).json()

# Solution is a single token
token = poll_result(resp["request"])

Key differences for automation

Consideration	GeeTest	reCAPTCHA
Fresh params per solve	Yes (challenge is single-use)	No (sitekey is static)
Session management	Must maintain session between param fetch and solve	Simpler — token is standalone
Token injection	Submit 3 form fields	Inject 1 hidden field
Fallback behavior	Usually no fallback	v3 often falls back to v2
Error handling	Must handle expired challenges	Must handle token expiry

FAQ

Which is more common?

reCAPTCHA is far more common globally. GeeTest dominates in China and is growing in Asia, Latin America, and some European markets.

Which is harder to solve?

Both are solvable with CaptchaAI at similar success rates. GeeTest requires more integration work (parameter extraction, 3-part response) compared to reCAPTCHA's simpler token-based flow.