Prices · GPT
OpenAI API pricing
OpenAI's GPT API costs from $0.10 to $10.00 per million input tokens, as of October 2026 (GPT API pricing). Here's every GPT model's price, what that means for a typical message, and what the same models cost per message in llmwise.
GPT API prices
| Model | Input / output per 1M tokens | Typical message | Context window | In llmwise |
|---|---|---|---|---|
| GPT-6 AstraOpenAI | $10.00 / $50.00 | $0.0750 | 1.05M tokens | 31/mo on Pro |
| GPT-6.1 SolOpenAI | $2.00 / $10.00 | $0.0150 | 1.05M tokens | 125/mo on Pro |
| GPT-6 SolOpenAI | $2.00 / $10.00 | $0.0150 | 1.05M tokens | 125/mo on Pro |
| GPT-6 LunaOpenAI | $0.10 / $0.50 | $0.0008 | 1.05M tokens | 60/day on Pro |
OpenAI's latest news: OpenAI DevDay 2026: GPT-6.1 Sol and what else OpenAI announced (); GPT-6 Sol and Luna are out: half the API price, and what they cost you (); ChatGPT Pro $200's sign-up pause is over: Pro 200 reopened, and Pro 500 is new ().
What a typical message costs
A chat message is rarely just your question: the model also reads the conversation so far, so 4,000 tokens in and 700 out is a fair middle. At these prices that's $0.0008 on GPT-6 Luna, the least expensive GPT model. A long document or a long chat can multiply the input; reasoning and long answers add output.
GPT in llmwise
In llmwise you don't pay per token: you see how many messages you have left on each model before you send.
GPT-6 Astra: 31 messages a month on Pro (paid plans).
GPT-6.1 Sol: 125 messages a month on Pro, and in Free's one-time trial of 5 messages.
GPT-6 Sol: 125 messages a month on Pro, and in Free's one-time trial of 5 messages.
GPT-6 Luna: 60 messages a day on Pro, and in Free's one-time trial of 5 messages.
| Plan | Price | Everyday models | A month on the other models |
|---|---|---|---|
| Free | $0 | A one-time trial of 5 messages | The same 5, also on Claude Sonnet 5.5, Claude Sonnet 5, Claude Haiku 4.5, GPT-6.1 Sol, GPT-6 Sol, Gemini 3.1 Pro (preview), Gemini 3.8 Flash, DeepSeek V4 Pro, Grok 4.7, Kimi K3, GLM 5.3, and Mistral Large 4; one of them can be on Claude Opus 5.5 |
| Pro | $20 a month + applicable tax, shown before you pay | 60 a day | 31 messages on Claude Fable 5.1 or GPT-6 Astra; 62 on Claude Opus 5.5; 125 on Claude Sonnet 5.5-class models; or 250 on Claude Haiku 4.5-class models |
| Max | $50 a month + applicable tax, shown before you pay | 120 a day | 100 messages on Claude Fable 5.1 or GPT-6 Astra; 200 on Claude Opus 5.5; 400 on Claude Sonnet 5.5-class models; or 800 on Claude Haiku 4.5-class models |
| Ultra | $100 a month + applicable tax, shown before you pay | 200 a day | 225 messages on Claude Fable 5.1 or GPT-6 Astra; 450 on Claude Opus 5.5; 900 on Claude Sonnet 5.5-class models; or 1,800 on Claude Haiku 4.5-class models |
| Studio | $200 a month + applicable tax, shown before you pay | 200 a day | 500 messages on Claude Fable 5.1 or GPT-6 Astra; 1,000 on Claude Opus 5.5; 2,000 on Claude Sonnet 5.5-class models; or 4,000 on Claude Haiku 4.5-class models |
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
API or chat?
Building an app, a script or a pipeline that calls a model? You need an API: the provider's own, or a router in front of several. llmwise isn't one.
Want to ask questions, write, analyse files or code with a model yourself? A chat is simpler: no keys, no token maths, and in llmwise a fixed price per message you see before you send.
All prices side by side: LLM cost calculator.
Questions
How much does the GPT API cost?
As of October 2026 (OpenAI's list price), per million tokens in and out: GPT-6 Astra $10.00 / $50.00; GPT-6.1 Sol $2.00 / $10.00; GPT-6 Sol $2.00 / $10.00; GPT-6 Luna $0.10 / $0.50.
What does GPT cost in llmwise?
Per message, not per token: GPT-6 Astra, 31 messages a month on Pro; GPT-6.1 Sol, 125 messages a month on Pro; GPT-6 Sol, 125 messages a month on Pro; GPT-6 Luna, 60 messages a day on Pro. You see how many are left before you send, however long the reply.
Can I use GPT for free?
In llmwise, to try: GPT-6.1 Sol, GPT-6 Sol, and GPT-6 Luna are on the Free plan, a one-time trial of 5 messages.
Claude, GPT, Gemini, DeepSeek, Grok, Kimi, GLM, and Mistral, in one chat.
See what a message costs before you send it. Free is 5 messages to try; sign in with an email link, no password or card.