OpenAI · API model

GPT-6 Astra

Generally availableReleased Sep 3, 2026Proprietary

API id gpt-6-astra prices checked

Input
$10.00/1M
Output
$50.00/1M
Context
1.05Mtokens
Max output
128Ktokens
Knowledge cutoff
Apr 2026
Typical request
$0.035

Pricing

US dollars per 1 million tokens. A typical request (1,000 input + 500 output tokens) costs $0.035 at standard rates.

RateInputCached inputOutput
Standard$10.00$1.00$50.00
Long promptsPrompts over 272K tokens$20.00$2.00$75.00
BatchAsynchronous, results within 24 hours$5.00—$25.00
FlexLower price, slower responses$5.00—$25.00
PriorityFast mode, 2x standard. Ultrafast (6x, US data residency only) is also offered.$20.00—$100.00

Capabilities and limits

Context window1.05M tokens
Max output128K tokens
InputTextImages
OutputText
ReasoningAdjustable effort
Tool useYes
Structured output (JSON)Yes
Knowledge cutoffApr 30, 2026

Lifecycle status

No deprecation or shutdown date announced on OpenAI's official deprecations page as of Oct 23, 2026.

Change history

Launches, price changes and retirements for GPT-6 Astra, newest first, each linked to the vendor's notice.

  1. New model

    GPT-6.1 Sol released at $2 / $10 per 1M tokens; Ultrafast tier for GPT-6 Astra

    6.1 Sol cuts cached input to $0.10. Astra Ultrafast costs $60 / $300 (6x standard), US data residency only.

  2. New model

    GPT-6 Astra released at $10 / $50 per 1M tokens

    $20 / $75 above 272K input tokens. Batch and Flex at half price, Fast mode at double.

Benchmarks and speed

Not collected yet. Scores will come only from independent leaderboards, each shown with its source and test date.

Planned: GPQA Diamond, SWE-bench Verified, AIME 2025, LMArena Elo, output speed and time to first token.

Where these numbers come from

Every value is an observation with a source and a date. independent is a third-party catalog, vendor is the model maker's own page, derived is our calculation.

FieldValueSourceObserved
Standard price, input / output$10.00 / $50.00vendorOpenAI API pricingOct 17, 2026
Standard price, input / output$10.00 / $50.00independentLiteLLMOct 17, 2026
Standard price, input / output$10.00 / $50.00independentOpenRouterOct 17, 2026
Context window / max output1,050,000 / 128,000 tokensvendorOpenAI model docsOct 17, 2026
Release date2026-09-03vendorOpenAI API changelogOct 17, 2026
Benchmarks at launchTerminal-Bench 4.0 57.9%, OSWorld 2.0 72.6%, GPQA Diamond 96.0% (OpenAI's own figures)vendorOpenAI launch postOct 17, 2026