GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
Ways to buy 8
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
flex, cheapest · cached $0.5 | $5 | $25 | $5 / $25-50% vs list | $0.5 | -50% vs list |
The lab's own API · cached $1 | $10 | $50 | $10 / $50List price | $1 | List price |
global · cached $1 | $10 | $50 | $10 / $50Same as list | $1 | Same as list |
Default region · cached $1 | $10 | $50 | $10 / $50Same as list | $1 | Same as list |
us-west-2 · cached $1.1 | $11 | $55 | $11 / $55+10% vs list | $1.1 | +10% vs list |
us · cached $1.1 | $11 | $55 | $11 / $55+10% vs list | $1.1 | +10% vs list |
fast · cached $2 | $20 | $100 | $20 / $100+100% vs list | $2 | +100% vs list |
ultrafast · cached $6 | $60 | $300 | $60 / $300+500% vs list | $6 | +500% vs list |
USD per 1M tokens; batch $5 in, $25 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $2,000 direct.
Kong AI Gateway$2,000+0%
LiteLLM$2,000+0%
Neon AI Gateway$2,000+0%
Vercel AI Gateway$2,000+0%
Cloudflare AI Gateway$2,100+5%
Requesty$2,100+5%
Eden AI$2,110+5.5%
OpenRouter$2,110+5.5%
HeliconeNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra Pro is the same underlying model as GPT-6.1 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
Anthropic · 1M | $10 | $50 | $10 / $50 | $20 | 1M | Lab list price | · | Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual... |
Anthropic · 1M | $10 | $50 | $10 / $50 | $20 | 1M | Lab list price | · | Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. |
Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · | Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. |
Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · | Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. |
About GPT-6 Astra
Takes files, image, text in and returns text. First listed Sep 5, 2026. Up to 128K output tokens. Blended price $20 per 1M tokens at 3 input to 1 output. Overall score 55 on leadersboard.fru.dev (rank 1). Model id gpt-6-astra.
Price history
List price since Sep 5, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does GPT-6 Astra cost?
$10 per million input tokens and $50 per million output tokens, with cached input at $1, or $5 and $25 through the Batch API.
What is the context window of GPT-6 Astra?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-6 Astra cheapest?
Of 8 routes tracked, OpenAI is cheapest at $5 input and $25 output per million tokens.