Looking for an honest Anthropic Claude 3.7 Sonnet vs OpenAI o3-mini comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Anthropic Claude 3.7 Sonnet comes out ahead 72/100 to 66/100 — a 6-point gap. The widest gap is in design and build, where the Anthropic Claude 3.7 Sonnet pulls noticeably ahead.
Anthropic
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Anthropic Claude 3.7 Sonnet narrowly beats the OpenAI o3-mini in the ai language models category, especially in design, scoring 72 vs 66. If you want the better overall ai language models, Anthropic Claude 3.7 Sonnet is the recommended choice.
Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
Lower cost = better value. Free = open-source self-hosted.
| Metric | 3.7 Sonnet | OpenAI o3-mini |
|---|---|---|
| Input (Prompt) | $3.00/1M | ✓$1.10/1M |
| Output (Completion) | $15.00/1M | ✓$4.40/1M |
| Open Source | Proprietary | Proprietary |
Context Window (tokens)
| Metric | 3.7 Sonnet | OpenAI o3-mini |
|---|---|---|
| Max Output | 16,000 tok | ✓100,000 tok |
| Speed | ✓90 tok/s | 80 tok/s |
| Time to First Token | ✓600ms | 2.0s |
| Languages | 50+ | 50+ |
Higher is better. Industry-standard AI evaluation benchmarks.
3.7 Sonnet
OpenAI o3-mini
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| Feature | 3.7 Sonnet | OpenAI o3-mini |
|---|---|---|
| Reasoning / Chain-of-Thought | ✓ | ✓ |
| Vision (Image Input) | ✓ | ✕ |
| Audio Input | ✕ | ✕ |
| Video Input | ✕ | ✕ |
| Image/Audio Output | ✕ | ✕ |
| Function Calling / Tools | ✓ | ✓ |
| JSON Mode | ✓ | ✓ |
| Real-time Web Access | ✕ | ✕ |
| Fine-tuning Support | ✕ | ✕ |
| Batch API | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| Open Source | ✕ | ✕ |
| Field | 3.7 Sonnet | OpenAI o3-mini |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Knowledge Cutoff | 2024-10 | 2023-10 |
| Best For | codingreasoninganalysiswriting | reasoningcodingmathcost efficiency |
Buy Anthropic Claude 3.7 Sonnet if…
Buy the Anthropic Claude 3.7 Sonnet if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Buy OpenAI o3-mini if…
Choose the OpenAI o3-mini if budget is your top priority — it offers competitive specs at a lower price point.
Anthropic Claude 3.7 Sonnet narrowly beats the OpenAI o3-mini in the ai language models category, especially in design, scoring 72 vs 66. If you want the better overall ai language models, Anthropic Claude 3.7 Sonnet is the recommended choice.
Yes, Anthropic Claude 3.7 Sonnet scores higher overall (75 vs 75).
Check the latest prices using the buy links above.
Buy the Anthropic Claude 3.7 Sonnet if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Choose the OpenAI o3-mini if budget is your top priority — it offers competitive specs at a lower price point.
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.