xtekky/gpt4free · error · Exception

Failed to solve 'gAAAAAC' challenge

Error message

Failed to solve 'gAAAAAC' challenge

What it means

Raised when g4f fails to generate the 'gAAAAAC' requirements token for OpenAI. Unlike the gAAAAAB token it uses a locally generated random seed and the fixed mild difficulty '0fffff' (new.py:454), so the 500k-attempt sha3_512 search practically always succeeds. A failure therefore signals the generate_answer algorithm itself no longer matches what the server expects (config schema drift), not bad luck.

Source

Thrown at g4f/Provider/openai/new.py:459

        hash_value = hashlib.new("sha3_512", seed_encoded + base_encode).digest()

        if hash_value[:diff_len] <= target_diff:
            return base_encode.decode(), True

    return (
        "wQ8Lk5FbGpA2NcR9dShT6gYjU7VxZ4D"
        + base64.b64encode(f'"{seed}"'.encode()).decode(),
        False,
    )


def get_requirements_token(config):
    require, solved = generate_answer(format(random.random()), "0fffff", config)

    if solved:
        return "gAAAAAC" + require
    else:
        raise Exception("Failed to solve 'gAAAAAC' challenge")


### processing turnstile token


class OrderedMap:
    def __init__(self):
        self.map = OrderedDict()

    def add(self, key: str, value: Any):
        self.map[key] = value

    def to_json(self):
        return json.dumps(self.map)

    def __str__(self):
        return self.to_json()

View on GitHub (pinned to 973504e177)

Solutions

1. Upgrade g4f (pip install -U g4f) to pick up the current challenge solver
2. Retry once — the random seed changes each call, though repeated failure means version skew
3. Pin/try a known-good g4f release if a recent one regressed
4. Fall back to another provider temporarily

try:
    req_token = get_requirements_token(config)
except Exception:
    logger.warning("gAAAAAC solver out of sync; upgrade g4f")
    raise

When it happens

Trigger: get_requirements_token(config) is called during OpenaiChat requests; generate_answer exhausts maxAttempts against the '0fffff' target or the returned token is rejected upstream; happens when config array indices used to build p1/p2/p3 (config[:3], config[4:9], config[10:]) no longer match the server's expected layout.

Common situations: Using an old g4f version after OpenAI rotated its chat-requirements challenge; a fork/patch altered the config array length or ordering; rare hash-loop exhaustion on very slow CPUs.

Related errors

• Failed to solve 'gAAAAAB' challenge
• Error processing token {token}: {exc}
• {captcha}
• {message or html}
• Failed to extract bx-umidtoken.

AI-assisted analysis of xtekky/gpt4free@973504e177 (2026-08-14). Data as JSON: /api/errors/16758279951d5cee. Report an issue: GitHub.