Claude Opus 5
aix402 v2POST /llm/claude-opus-5
~$5.50 in / $27.50 out per M
Claude Opus 5 text generation (Anthropic) via OpenRouter. OpenAI-compatible chat completions with a 1M-token context window. Usage-based pricing: input + output tokens at provider cost + 10% (~$5.50 in / $27.50 out per 1M). On the x402 door the per-call charge is quoted up front as an upper bound, so set max_tokens to lower it. Also available at POST /v1/chat/completions (API key + credits) and via the multi-model door POST /llm/nim.
Run Request
Fill in the parameters and execute the request

The user prompt (or use messages)

Optional system prompt

Optional cap on output tokens, lowers the up-front per-call charge

Optional sampling temperature (0–2)

Connect wallet to make payments
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