LLM prices per 1M tokens

264 models · 161 price changes

GPT-6 Astra

OpenAI · Reasoning · 1.05M context · released Sep 4, 2026 · checked 12h ago

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.

Ways to buy 8

Way to buyIn / out per 1M
OpenAI
flex, cheapest · cached $0.5
$5 / $25-50% vs list
OpenAI API
The lab's own API · cached $1
$10 / $50List price
AWS Bedrock
global · cached $1
$10 / $50Same as list
Azure AI Foundry
Default region · cached $1
$10 / $50Same as list
AWS Bedrock
us-west-2 · cached $1.1
$11 / $55+10% vs list
Azure AI Foundry
us · cached $1.1
$11 / $55+10% vs list
OpenAI
fast · cached $2
$20 / $100+100% vs list
OpenAI
ultrafast · cached $6
$60 / $300+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 numbers

100M input and 20M output tokens a month: $2,000 direct.

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
GPT-6.1 Terra
OpenAI · 1.05MCheapest: $1 on OpenAI (flex)
$1 / $5GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.
GPT-6.1 Terra Pro
OpenAI · 1.05MCheapest: $1 on OpenAI (flex)
$1 / $5GPT-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.
GPT-6.1 Sol
OpenAI · 1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.
GPT-6.1 Sol Pro
OpenAI · 1.05MCheapest: $2 on OpenAI (flex)
$2 / $10GPT-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.
Claude Fable 5.1
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$10 / $50Claude 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...
Claude Fable 5
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Claude Opus 5
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Claude Opus 4.6
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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

$10$30Sep 5, 2026Output $50Input $10

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.