Claude Opus 4.5 vs Grok 4.1 Fast
Grok 4.1 Fast costs 97% less at typical usage ($0.28 vs $10.0 per 1M tokens). Claude Opus 4.5 scores higher on 11 of 11 tasks.
| Spec | Claude Opus 4.5 | Grok 4.1 Fast |
|---|---|---|
| Input /1M | $5.00 | $0.20 |
| Output /1M | $25.0 | $0.50 |
| Typical /1M | $10.0 | $0.28 |
| Context window | 200k | 2M |
| Speed | Measured | Fast |
| Privacy | Strong | Standard |
| Open weights | No | No |
Claude Opus 4.5
Steady since we started tracking (Jul 13, 2026)
Grok 4.1 Fast
Steady since we started tracking (Jul 13, 2026)
Quality by task
Coding99/82
Agents99/84
Reasoning98/84
Writing96/82
Chat92/86
Classify90/84
Extract92/84
Summarize94/85
Translate90/84
Vision93/84
General96/83
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Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.