GPT-6 Sol and Luna now available on AI Gateway
By Steven Van ·
GPT-6 Sol and Luna join Vercel's AI Gateway, priced below GPT-6 Astra, with Sol suited to sustained coding and Luna to high-volume tasks.
Vercel's AI Gateway now offers two new OpenAI models, GPT-6 Sol and GPT-6 Luna, both priced lower 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. It takes text and images, supports a 1.05M-token context window with up to 128,000 output tokens, and costs $2 per 1M input tokens and $10 per 1M output tokens. A `-fast` suffix on the model ID runs it in a lower-latency mode.
- GPT-6 Luna (openai/gpt-6-luna) is the lower-cost option for high-volume agentic workflows, coding, and everyday tasks.
Both models communicate more directly than their GPT-5.6 counterparts, with less jargon and fewer low-value details, and are less likely to make misleading claims about work completed during coding tasks.
Both are available through the AI SDK, the OpenAI-compatible Chat Completions and Responses APIs, and coding agents connected to AI Gateway. Installing the latest Vercel CLI and running vercel ai-gateway setup connects supported coding agents; pick GPT-6 Sol for longer or more demanding coding work, or GPT-6 Luna when throughput is the priority.