Looking for an honest OpenAI GPT-4o mini vs Mistral AI Mistral Small 3 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 OpenAI GPT-4o mini comes out ahead 63/100 to 54/100 — a 9-point gap. The widest gap is in design and build, where the OpenAI GPT-4o mini pulls noticeably ahead.
OpenAI
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OpenAI GPT-4o mini edges out the Mistral AI Mistral Small 3 in the ai language models category, especially in design, scoring 63 vs 54. If you want the better overall ai language models, OpenAI GPT-4o mini 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
Lower cost = better value. Free = open-source self-hosted.
| Metric | GPT-4o mini | Small 3 |
|---|---|---|
| Input (Prompt) | $0.15/1M | ✓$0.10/1M |
| Output (Completion) | $0.60/1M | ✓$0.30/1M |
| Open Source | Proprietary | ✓ Free |
Context Window (tokens)
| Metric | GPT-4o mini | Small 3 |
|---|---|---|
| Max Output | ✓16,384 tok | 4,096 tok |
| Speed | ✓220 tok/s | 200 tok/s |
| Time to First Token | 280ms | ✓250ms |
| Languages | ✓50+ | 12+ |
Higher is better. Industry-standard AI evaluation benchmarks.
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| Feature | GPT-4o mini | Small 3 |
|---|---|---|
| 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 | GPT-4o mini | Small 3 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Parameters | — | 24B |
| Knowledge Cutoff | 2023-10 | 2024-01 |
| License | Commercial | Apache 2.0 |
| Best For | high volumecost efficiencysimple tasks | cost efficiencyopen sourceself hostinghigh volume |
Buy OpenAI GPT-4o mini if…
Buy the OpenAI GPT-4o mini if you want the best camera quality in this comparison. It scores higher overall and is the recommended choice for most buyers.
Buy Mistral AI Mistral Small 3 if…
The Mistral AI Mistral Small 3 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
OpenAI GPT-4o mini edges out the Mistral AI Mistral Small 3 in the ai language models category, especially in design, scoring 63 vs 54. If you want the better overall ai language models, OpenAI GPT-4o mini is the recommended choice.
Yes, OpenAI GPT-4o mini scores higher overall (75 vs 75).
Check the latest prices using the buy links above.
Buy the OpenAI GPT-4o mini if you want the best camera quality in this comparison. It scores higher overall and is the recommended choice for most buyers.
The Mistral AI Mistral Small 3 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
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.