Claude Opus 4.7 vs o3-mini
Pricing, context window, and benchmark comparison · Last updated June 2026
o3-mini is cheaper than Claude Opus 4.7 at $1.10/1M vs $5.00/1M input tokens — a 4.5x cost difference. Claude Opus 4.7 scores higher on quality benchmarks (ELO 1415). Choose o3-mini for cost-sensitive workloads; choose Claude Opus 4.7 for maximum quality.
Which is cheaper: Claude Opus 4.7 or o3-mini?
o3-mini is the cheaper option at $1.10/1M per 1M input tokens, compared to $5.00/1M for Claude Opus 4.7. That is a 4.5x cost difference on input tokens. Output pricing follows a similar pattern: Claude Opus 4.7 charges $25.00/1M vs $4.40/1M for o3-mini.
Which has better quality: Claude Opus 4.7 or o3-mini?
Based on LMSYS Chatbot Arena rankings, Claude Opus 4.7 achieves a higher ELO score (1415 vs 1340), suggesting stronger performance on open-ended tasks. Claude Opus 4.7 excels at step-change improvement in agentic coding over opus 4.6. o3-mini is known for strong reasoning at a low price point.
Which should you choose: Claude Opus 4.7 or o3-mini?
- → Step-change improvement in agentic coding over Opus 4.6
- → 1M token context window at standard pricing
- → 128K max output tokens
- → Strong reasoning at a low price point
- → 200K context window
- → Three effort levels (low/medium/high) for cost control
Frequently Asked Questions
Which is cheaper: Claude Opus 4.7 or o3-mini?
o3-mini is cheaper at $1.10/1M per 1M input tokens, making it 4.5x more affordable.
Which has better quality: Claude Opus 4.7 or o3-mini?
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 o3-mini?
Claude Opus 4.7 has a larger context window at 1000K tokens.
Should I choose Claude Opus 4.7 or o3-mini?
Choose o3-mini 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 o3-mini excels at reasoning and math.
Is Claude Opus 4.7 or o3-mini open source?
Claude Opus 4.7 is proprietary. o3-mini is proprietary.