Gemini 4 Argon API (google/gemini-4-argon): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Gemini 4 Argon on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.

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