Claude Opus 4.7 vs Grok 4.1 Fast
Pricing, context window, and benchmark comparison · Last updated April 2026
Grok 4.1 Fast is cheaper than Claude Opus 4.7 at $0.20/1M/1M vs $5.00/1M/1M input tokens — a 25.0x cost difference. Claude Opus 4.7 scores higher on quality benchmarks (ELO 1415). Choose Grok 4.1 Fast for cost-sensitive workloads; choose Claude Opus 4.7 for maximum quality.
Which is cheaper: Claude Opus 4.7 or Grok 4.1 Fast?
Grok 4.1 Fast is the cheaper option at $0.20/1M per 1M input tokens, compared to $5.00/1M for Claude Opus 4.7. That is a 25.0x cost difference on input tokens. Output pricing follows a similar pattern: Claude Opus 4.7 charges $25.00/1M/1M vs $0.50/1M/1M for Grok 4.1 Fast.
Which has better quality: Claude Opus 4.7 or Grok 4.1 Fast?
Based on LMSYS Chatbot Arena rankings, Claude Opus 4.7 achieves a higher ELO score (1415 vs 1305), suggesting stronger performance on open-ended tasks. Claude Opus 4.7 excels at step-change improvement in agentic coding over opus 4.6. Grok 4.1 Fast is known for 2m token context at $0.20/$0.50 per 1m — unbeatable for long context.
Which should you choose: Claude Opus 4.7 or Grok 4.1 Fast?
- → Step-change improvement in agentic coding over Opus 4.6
- → 1M token context window at standard pricing
- → 128K max output tokens
- → 2M token context at $0.20/$0.50 per 1M — unbeatable for long context
- → Very fast inference
- → Real-time X data access
Frequently Asked Questions
Which is cheaper: Claude Opus 4.7 or Grok 4.1 Fast?
Grok 4.1 Fast is cheaper at $0.20/1M per 1M input tokens, making it 25.0x more affordable.
Which has better quality: Claude Opus 4.7 or Grok 4.1 Fast?
Claude Opus 4.7 scores higher on the LMSYS Chatbot Arena with an ELO of 1415, suggesting better overall quality for most tasks.
Which has a larger context window: Claude Opus 4.7 or Grok 4.1 Fast?
Grok 4.1 Fast has a larger context window at 2000K tokens.
Should I choose Claude Opus 4.7 or Grok 4.1 Fast?
Choose Grok 4.1 Fast if cost is the priority. Choose Claude Opus 4.7 if benchmark quality is most important. Consider your specific use case: Claude Opus 4.7 is best for coding and reasoning, while Grok 4.1 Fast excels at long-context and low-cost.
Is Claude Opus 4.7 or Grok 4.1 Fast open source?
Claude Opus 4.7 is proprietary. Grok 4.1 Fast is proprietary.