OpenAI · Flagship
GPT-6 Astra
OpenAI describes it as its most capable model for demanding work
- Provider
- OpenAI
- Family
- GPT
- Model type
- Flagship
- Official release date
- Sep 3, 2026
- Release type
- New model
- Status
- Generally available
- Previous version
- GPT-5.6 Sol
- Input
- text, image
- Output
- text
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- API model id
gpt-6-astra- API price (input)
- $10 per 1M tokens
- API price (output)
- $50 per 1M tokens
- Price notes
- Cached input $1; prompts over 272K input tokens cost 2x input and 1.5x output; Batch/Flex 50% off; Fast mode 2x.
- Consumer apps
- ChatGPT paid plans (phased rollout; GPT-6 reached ChatGPT broadly from 2026-10-07)
- Developer API
- OpenAI API (Chat Completions, Responses, Batch); OpenAI also announced Azure and AWS Bedrock availability
- Free access
- None documented
- Paid access
- API pay-as-you-go; ChatGPT paid plans
- Availability
- —
- Licence
- proprietary
Main improvements
- OpenAI describes it as its most capable model for demanding work
- Reasoning effort levels low to max
- First OpenAI model rated Critical for cybersecurity capability under its Preparedness Framework, so advanced cyber uses are gated
Best use cases
- Complex reasoning
- Coding
- Computer use
- Research
- Document creation
Benchmarks
No benchmark results recorded. We only list scores with a source, benchmark version and date.
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