GPT-6 Astra
- In Input modalities: TextImage Out Output modalities: Text
- Reasoning· low, medium, high, xhigh, max
- Tool use
- Structured output
Prices
3 offerings · prices as listed OpenAI API (opens in a new tab)
gpt-6-astra| Conditions/ 1M tokens | Input | Cache read | Cache write | Cache write | Output | |
|---|---|---|---|---|---|---|
| 30-minute cache | 12-hour cache | |||||
| Standard | $10.00 | $1.00 | $12.50 | $12.50 | $25.00 | $50.00 |
| Prompts over 272K tokens | $20.00 | $2.00 | — | $25.00 | $50.00 | $75.00 |
| Flex tier | $5.00 | $0.50 | — | $6.25 | $12.50 | $25.00 |
| Fast tier | $20.00 | $2.00 | — | $25.00 | $50.00 | $100.00 |
| Ultrafast tier | $60.00 | $6.00 | — | $75.00 | $150.00 | $300.00 |
| Batch | $5.00 | $0.50 | — | $6.25 | $12.50 | $25.00 |
| Prompts over 272K tokensFlex tier | $10.00 | $1.00 | — | $12.50 | $25.00 | $37.50 |
| Prompts over 272K tokensFast tier | $40.00 | $4.00 | — | $50.00 | $100.00 | $150.00 |
| Prompts over 272K tokensUltrafast tier | $120.00 | $12.00 | — | $150.00 | $300.00 | $450.00 |
| Prompts over 272K tokensBatch | $10.00 | $1.00 | — | $12.50 | $25.00 | $37.50 |
Prices from OpenAI API pricing (opens in a new tab) (checked Nov 9, 2026) · GPT-6 Astra model (opens in a new tab) (checked Nov 5, 2026)
Standard: the price a request with no conditions pays (the headline price elsewhere on the site).
Details
- Max input
- 922K
- Reasoning can be off
- —
- Knowledge cutoff
- Apr 2026
- Open weights
- —
- Family
- gpt-astra
- Model ID
Not stated on OpenAI’s pages: max thinking budget, built-in tools, aliases.
Cited scores
From third-party leaderboards, not measured by us- Epoch Capabilities Index 169.1
#1 of 118 listed models · CI 166.2–172.3
- LMArena Text 1,475
#30 of 163 listed models · max effort · CI 1,469–1,480 · 17,951 votes
- Epoch AI · Chess Puzzles 74%
#1 of 85 listed models · max effort · ±4.41
- Epoch AI · EBR-bench 76.2%
#2 of 28 listed models · max effort · ±8.38
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 28 – Nov 5, 2026
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Nov 8, 2026
- EQ-Bench by Samuel J. Paech (eqbench.com; EQ-bench/EQ-bench-site on GitHub), MIT License. · License · as of Oct 28, 2026
- LiveBench (White et al.), release 2026-06-25, livebench.ai, licensed CC BY-SA 4.0. This board, adapted from it, is shared under CC BY-SA 4.0. · License · as of Jun 25, 2026
- changes we made
Provider-reported scores
Published by OpenAI, under the conditions it states| Benchmark | Setting | Score |
|---|---|---|
| Terminal-Bench 4.0 | maximum across effort levels | 57.9% |
| DeepSWE 1.1 | maximum across effort levels | 74.1% |
| OSWorld 2.0 | v2026.08.08 offline set, partial score; maximum across effort levels | 72.6% |
| BrowseComp | maximum across effort levels | 91.5% |
| GPQA Diamond | maximum across effort levels | 96% |
| Humanity's Last Exam | with tools; maximum across effort levels | 57.2% |
| ARC-AGI-2 | maximum across effort levels | 95% |
| MRCR v2 | 8-needle, 256K–512K | 100% |
| 8-needle, 512K–1M | 96.3% |
Included in coding plans
- ChatGPT plans for Codex Plus $20.00 / monthEstimated 5–45 messages every 5 hours · local messages
- ChatGPT plans for Codex Business $25.00 / monthEstimated 5–45 messages every 5 hours · local messages
- GitHub Copilot Pro+ $39.00 / month7,000 credits per monthVariable additional usage on top of your base. Flex allotments may change over time.70 USD of usage per month
- GitHub Copilot Max $100.00 / month20,000 credits per monthVariable additional usage on top of your base. Flex allotments may change over time.
- GitHub Copilot Business $19.00 / month1,900 credits per month
- GitHub Copilot Enterprise $39.00 / month3,900 credits per month
News
All news →- Sep 29, 2026Capability OpenAI adds Ultrafast mode for GPT-6 Astra OpenAI added Ultrafast mode for GPT-6 Astra in the Responses API. API customers can use the ultrafast service tier to reduce the time between generated output tokens, subject to rate limits.
- Sep 22, 2026Capability OpenAI improves prompt caching for GPT-6 OpenAI says GPT-6 models hit the prompt cache more often by default, and discounts now apply to shared prefixes reused within 30 minutes. New tools include a caching dashboard, a diagnostics tool that explains cache misses, explicit cache breakpoints, and changing reasoning effort mid-conversation without losing the cache.
- Sep 3, 2026Release OpenAI releases GPT-6 Astra OpenAI released GPT-6 Astra on the Responses and Chat Completions APIs for reasoning, coding, computer use, research, and documents. It rejects none reasoning effort, custom temperature, top_p, and logprobs. Tool calling requires the Responses API.
- Sep 3, 2026Capability OpenAI adds long-running controls for GPT-6 Astra The Responses API now offers async tool calling, mid-turn steering over WebSockets, and mid-conversation reasoning-effort changes for GPT-6 Astra, while preserving the cached prompt prefix.
Changes
All changes →- 4 new prices on Azure OpenAI in Foundry Input (Long context (threshold not stated), Flex tier) $10.00 · Cache read (Long context (threshold not stated), Flex tier) $1.00 · Cache write (Long context (threshold not stated), Flex tier) $12.50 · Output (Long context (threshold not stated), Flex tier) $37.50
- 4 prices dropped on OpenAI API Input (Prompts over 272K tokens, Fast tier) $40.00 · Cache read (Prompts over 272K tokens, Fast tier) $4.00 · Cache write (Prompts over 272K tokens, Fast tier) $50.00 · Output (Prompts over 272K tokens, Fast tier) $150.00
- New language model
Sources
- GPT-6 Astra: A new generation of intelligence (opens in a new tab) openai.com · checked Sep 26, 2026
- Azure OpenAI pricing (opens in a new tab) azure.microsoft.com · checked Nov 8, 2026
- OpenAI API pricing (opens in a new tab) developers.openai.com · checked Nov 9, 2026
- GPT-6 Astra model (opens in a new tab) developers.openai.com · checked Nov 5, 2026
- Changelog (opens in a new tab) developers.openai.com · checked Nov 9, 2026
- GPT-6 Astra (opens in a new tab) developers.openai.com · checked Nov 5, 2026
- Using GPT-6 (opens in a new tab) developers.openai.com · checked Nov 8, 2026
OpenAI’s official policies: data use, privacy, terms →
OpenAI · United States · openai.com
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