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x402.monpham.work GPT-5.6 Sol Chat Completions
x402
x402.monpham.work GPT-5.6 Sol Chat Completions is a paid API for AI agents from x402.monpham.work, paid per call via x402, $0.06/call, status unknown (last checked 2026-10-27).
Runs chat completions via a self-described 'GPT-5.6 Sol' frontier LLM optimized for hard reasoning, complex multi-file code, and long-context analysis, with OpenAI-compatible request/response format.
Price / call$0.06
Success—
StatusUnknown
How this service works
GPT-5.6 Sol — flagship frontier model, the most capable tier in the GPT-5.6 family. Best for hard reasoning, complex multi-file code work, long-context analysis, and tasks where accuracy outweighs cost. Limits: 24K input / 4K output tokens per call. OpenAI-compatible request and response format.
Output
Returns an OpenAI-compatible chat completion object containing the assistant's generated message, model metadata, token usage counts (prompt tokens, completion tokens, total tokens), finish reason, and an ID. The response follows the standard OpenAI ChatCompletion response schema.
Example use cases
Hard logic and reasoning task
“Can you use the most capable model available to reason through this step-by-step: I have a logic puzzle with 6 constraints and 4 variables — here's the full problem. I need a careful, accurate solution, not a fast guess. Set temperature to 0.2 and give me up to 2000 tokens.”
Complex multi-file code review
“I've got three interconnected TypeScript files that implement an auth flow — here's the full code. Use the highest-accuracy model you have, with temperature 0.1 and 3500 max tokens, to review them for security vulnerabilities, race conditions, and logic errors, then suggest corrected versions.”
Long-context document analysis
“Here's a 20,000-token legal contract. I need you to run it through the most capable LLM you can find and extract all indemnification clauses, flag any unusual liability terms, and summarize the key obligations for each party. Use up to 4000 output tokens.”
Technical details
Endpoint
GEThttps://x402.monpham.work/v1/sol/chat/completions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when accuracy and reasoning depth are more important than cost or latency — e.g. hard logic puzzles, complex multi-file code analysis, long-context document work, or tasks where a wrong answer is costly. Prefer GPT-5.6 Luna for fast, cheap completions and GPT-5.6 Terra for a balanced middle ground. Use Sol when you need the highest-capability tier in this family and can absorb the $0.06/call cost.
Side effects
- Context length exceeded: combined input messages exceed 24,000 tokens, returning a 400 error
- max_tokens capped at 4000: requests above this limit are silently or explicitly capped
- Payment failure: x402 payment of $0.06 USDC not fulfilled, resulting in a 402 response
- Model ID mismatch: unsupported model string returns an error
- Rate limiting or overload: 429 or 503 responses under high traffic
- Invalid message format: missing required 'role' or 'content' fields causes a 400
- Streaming failure: SSE stream interrupted mid-response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Tags
x402
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