GPT-5.6 Sol, Terra & Luna Now Available
OpenAI's new GPT-5.6 family is live on LLM Gateway from day one: Sol for frontier reasoning at $5/$30 per 1M tokens, Terra balancing intelligence and cost at $2.50/$15, and Luna for high-volume workloads at $1/$6 — all with a 1.05M-token context window, reasoning, vision, tool calling, and web search.
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