Claude Mythos 5.2 Fast vs GPT-6.1 Sol Pro
Price, context window & benchmark comparison
VS
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Verdict: GPT-6.1 Sol Pro has the larger context window (1.1M vs —).
| Claude Mythos 5.2 Fast | GPT-6.1 Sol Pro | |
|---|---|---|
| Input price / 1M | — | $2.00 |
| Output price / 1M | — | $10.00 |
| Blended price (3:1) | — | $4.00 |
| Cached input / 1M | — | $0.10 |
| Context window | — | 1.1M |
| Max output | — | 128K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 7 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | No | Yes |
| Tool calling | No | Yes |
| Released | 2026-11-09 | 2026-09-29 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Mythos 5.2 Fast or GPT-6.1 Sol Pro?
Claude Mythos 5.2 Fast and GPT-6.1 Sol Pro are priced identically.
Claude Mythos 5.2 Fast vs GPT-6.1 Sol Pro: which has a bigger context window?
Claude Mythos 5.2 Fast: — tokens. GPT-6.1 Sol Pro: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Mythos 5.2 Fast ≈ $0, GPT-6.1 Sol Pro ≈ $9,000.
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