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GPT-6 Sol and Luna now available on AI Gateway

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GPT-6 Sol and GPT-6 Luna from OpenAI are now available on AI Gateway.

Both models bring GPT-6 improvements in professional work, coding, computer use, factuality, and communication at a lower price than GPT-6 Astra.

  • GPT-6 Sol (openai/gpt-6-sol) is suited to complex professional workflows and sustained coding tasks where quality and room to iterate both matter.

  • GPT-6 Luna (openai/gpt-6-luna) is the lower-cost option for high-volume agentic workflows, coding, and everyday tasks.

Both Sol and Luna communicate more directly than their GPT-5.6 counterparts, with less jargon and fewer low-value details. They also improve factual reliability and are less likely to make misleading claims about work completed during coding tasks.

Use openai/gpt-6-sol and openai/gpt-6-luna across the AI SDK, OpenAI-compatible Chat Completions API, OpenAI-compatible Responses API, and coding agents connected to AI Gateway.

import { streamText } from 'ai';


const result = streamText({
  model: 'openai/gpt-6-sol',
  prompt:
    `Investigate the checkout failures, implement and test a fix,
     then summarize the changes and any remaining risks.`,
});
View model details

Install the latest Vercel CLI and connect your supported coding agents to AI Gateway:

npm i -g vercel@latest
vercel ai-gateway setup

Then select openai/gpt-6-sol for longer or more demanding coding work, or openai/gpt-6-luna when throughput is the priority.

AI Gateway provides a unified API for calling models, tracking usage, and configuring retries, failover, and routing.

Try GPT-6 Sol or GPT-6 Luna in the model playground, view all language models available on AI Gateway, and learn when to use Sol vs. Luna.