GPT-6 Astra: Benchmarks, Pricing & Context Window
GPT-6 Astra is a language model from OpenAI, released in September 2026, with multimodal input, a 1.1M-token context window, and pricing from $10.00/M input, $1.00/M cached input, $50.00/M output.
GPT-6 Astra is OpenAI's released flagship for the hardest end-to-end work across complex reasoning, coding, computer use, research, and document creation. The API model id is gpt-6-astra. It accepts text and image input with text output,
GPT-6 Astra benchmarks
Capability tiers
Standing within each category, adjusted for leaderboard depth.
Real tasks performance
High-confidence performance for GPT-6 Astra across real-world prompt categories. Only 95% intervals at most 4 points wide are shown.
Performance by conversation depth
How GPT-6 Astra holds up as conversations get longer.
Quality Tracker
GPT-6 Astra Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
llm-stats.com - Mon Oct 19 2026GPT-6 Astra pricing
Providers
GPT-6 Astra starts at $10.00 per million input tokens and $50.00 per million output tokens via OpenAI. Reused prompt prefixes cost $1.00 per million cached input tokens.
| Provider | Input $/M | Cached input $/M | Output $/M | Context in / out | TTFT p95 s | Output p5 c/s | Modalities in / out |
|---|---|---|---|---|---|---|---|
 OpenAI | $10.00 | $1.00 | $50.00 | 1.1M/128.0K | — | — | / |
Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests.
GPT-6 Astra context window
Input and output token limits for GPT-6 Astra, plus how it ranks on long-context understanding.
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GPT-6 Astra latency
GPT-6 Astra time to first token, sustained output throughput, and failed-request rate from live model usage over the trailing 7 days.
GPT-6 Astra examples
Recent arena outputs from GPT-6 Astra, picked from the highest-ranked matchups.
GPT-6 Astra license
GPT-6 Astra is a proprietary model available under its provider's product and API terms, has a knowledge cutoff of April 2026.
- License
- Proprietary
- Hosted access
- Knowledge cutoff
- April 2026
Proprietary license - usage restrictions apply
GPT-6 Astra resources
Official sources for GPT-6 Astra: provider documentation, official playground, official launch post.
GPT-6 Astra vs other models
The most-compared alternatives to GPT-6 Astra are Claude Mythos Preview, GPT-5.2, Claude Opus 5.5. Open any pair side-by-side for benchmarks, pricing, context, and latency.
Models like GPT-6 Astra
Models ranked just above and below GPT-6 Astra by LLM Stats score.
FAQ
Common questions about GPT-6 Astra.