GPT-6 Astra
OpenAI · Multimodal · Released Sep 2026
OpenAI's flagship model in the GPT-6 series, designed for complex end-to-end work with a 1.05M token context window.
- Strengths
- Handles intricate, multi-step tasks and maintains context across long documents or conversations.
- Best for
- Complex reasoning, document analysis, and comprehensive problem-solving where capability matters more than speed.
- Limitations
- Slower than the Luna and Sol tiers in the same series; for reasoning-intensive work, GPT-6 Astra Pro (batch) offers extended reasoning capabilities at the cost of additional latency.
Input / 1M
$10.00
Output / 1M
$50.00
Cached input / 1M
$1.00
Context window
1.05M
Also billed
- Cache write
- $12.50 / 1M
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 5 Sep 2026 | $10.00 | $50.00 | $1.00 | Imported from OpenRouter | openrouter.ai |