GPT-6.1 Sol vs GPT-6 Astra
A direct, empirical evaluation of GPT-6.1 Sol (OpenAI) against GPT-6 Astra (OpenAI).
GPT-6.1 Sol
Developed by OpenAI · Proprietary Frontier Workhorse Engine parameters
Near-Astra reasoning at 1/5th price ($1.25/$5.00), SWE-bench Verified 74.8%, OSWorld 2.0 desktop agent automation, and sub-80ms Ultrafast Mode.
GPT-6 Astra
Developed by OpenAI · Proprietary Frontier parameters
Complex multi-step engineering, formal math proofs, autonomous computer/browser navigation, and CAD synthesis.
| Metric | GPT-6.1 Sol | GPT-6 Astra |
|---|---|---|
| SWE-bench Verified | 74.8% | 79.4% |
| MMLU-Pro | 92.4% | 91.2% |
| MATH-500 | 96.2% | 98.6% |
| Context Window | 1,000,000 tokens | 1,050,000 tokens |
| Input Pricing (per 1M) | $1.25 | $10.00 |
| Output Pricing (per 1M) | $5.00 | $50.00 |