OpenAI says GPT-6 Astra completes tax workbook twice as fast as GPT-5.6 Sol
OpenAI reports that GPT-6 Astra completed a 50-tab tax workbook twice as fast as GPT-5.6 Sol. It says the model's stronger understanding of user intent gives Basis more confidence in real-world use.
First seen 28 Sep, 00:00 UTC on openai.com2 sourcesLast update 3h ago
OpenAILaunch · 28 Sep
GPT-6 Astra
New product or feature
How GPT-6 Astra compares
List prices per million tokens, context and Arena's text leaderboard, against OpenAI's other top models and the leading labs' best. The percentages are GPT-6 Astra's price against each.
| Model | Released | Input | Output | Context | Arena |
|---|---|---|---|---|---|
| GPT-6 Astra | September 2026 | $10.00 | $50.00 | 1.05M | #23 1478 |
| GPT-6 Luna | September 2026 | $0.10 +9900% | $0.50 +9900% | 1.05M | not ranked yet |
| GPT-6 Sol | September 2026 | $2.00 +400% | $10.00 +400% | 1.05M | #50 1457 |
| Claude Opus 5.5 | September 2026 | $4.00 +150% | $20.00 +150% | 1M | #1 1509 |
| Gemini 3.1 Pro | $2.00 +400% | $12.00 +317% | 2M | #14 1487 | |
| Qwen3.8 Max Prime | September 2026 | $4.00 +150% | $12.00 +317% | 1M | not ranked yet |
Arena ranks the best effort setting of each model among all models on its text leaderboard. Every model and price.
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How it unfolded
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