Model comparison
Claude Mythos Preview vs GPT-6.1 Sol
Neither Claude Mythos Preview nor GPT-6.1 Sol has enough public benchmark results to be ranked yet; the rows below show what has been published.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in agentic & tool use, where Claude Mythos Preview leads 41.1 to 34.3.
Side by side
| Claude Mythos Preview | GPT-6.1 Sol | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 40.8 | 42.1 |
| Released | 2026-04-07 | 2026-09-29 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $10 |
| Results tracked | 2 | 2 |
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Category by category
Coding Not comparable
Claude Mythos Preview: —, GPT-6.1 Sol: 51.4
| Benchmark | Claude Mythos Preview | GPT-6.1 Sol |
|---|---|---|
| DeepSWE | — | 75.2% |
Agentic & Tool Use Claude Mythos Preview leads
Claude Mythos Preview: 41.1, GPT-6.1 Sol: 34.3
| Benchmark | Claude Mythos Preview | GPT-6.1 Sol |
|---|---|---|
| ExploitBench | 73.8% | — |
| GDP.pdf | — | 32% |
| METR Time Horizons | 85.2% | — |
Frequently asked questions
Is Claude Mythos Preview better than GPT-6.1 Sol?
Neither Claude Mythos Preview nor GPT-6.1 Sol has enough public benchmark results to be ranked yet; the rows below show what has been published.
How many benchmarks do Claude Mythos Preview and GPT-6.1 Sol share?
0 benchmarks have published results for both models. Claude Mythos Preview has 2 scored results on Noometry and GPT-6.1 Sol has 2.