GPT-o3 Mini
OpenAI GPT-o3 Mini: a small o-series reasoning model optimized for science, math, and coding. Accepts text input only. Deprecated, succeeded by o4-mini.
Model Overview
Capabilities, design details, and architectural traits
GPT-o3 Mini - Reasoning Optimized for Science, Math, and Coding
GPT-o3 Mini is a small o-series model optimized for science, math, and coding tasks. Unlike o3 and o4-mini, it accepts text input only - image input is not supported. It is now deprecated.
| Trait | Detail |
|---|---|
| Image input | Not supported - text only; this separates it from o3 and o4-mini, which both accept image input |
| Explicit task focus | Optimized for science, math, and coding tasks |
| Fine-tuning | Not supported |
GPT-o3 Mini's Place in the o-Series Progression
GPT-o3 Mini introduced Structured Outputs, function calling, and Batch API support to the small reasoning model tier - features that its predecessor o1-mini lacked. It is now deprecated, with o4-mini serving as its successor in the small o-series tier.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | OpenAI | Anthropic | Anthropic |
| Release Date | January 31, 2025 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | Oct 2023 | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 200K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $1.10 Best Input Pricing | $4 | $2 |
| Output Pricing | $4.40 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | textfile | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 12.5 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | - | - | - |
| Agentic Index | - | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
SciCode Benchmark
Scientific coding and mathematical modeling.
Long Context Reasoning
Logical reasoning over long context windows.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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