OpenAI
o3 Mini
OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding.
At a glance
- Input / 1M
- $1.10
- Output / 1M
- $4.40
- Context
- 200K
- Max output
- 100K
- Intelligence
- 12.5
- Released
- Jan 2025
Pricing
o3 Mini API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $1.10 |
|---|---|
| Output tokensPer 1M tokens | $4.40 |
| Cached input (read)Per 1M tokens | $0.55 |
| Cache writePer 1M tokens | Not available |
| Web searchPer request | $0.01 |
Chat message
2K in, 500 out
$4.40
per 1,000 requests
Coding task
30K in, 4K out
$50.60
per 1,000 requests
Long document summary
150K in, 2K out
$173.80
per 1,000 requests
Benchmarks
o3 Mini benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
12.5
Coding index
Not available
Agentic index
Not available
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 200K tokens
- Max output
- 100K tokens
- Input types
- File, Text
- Output types
- Text
- Reasoning effort
- Not available
- Release date
- January 31, 2025
- Knowledge cutoff
- October 31, 2023
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
o3 Mini vs other models
See how o3 Mini stacks up head to head on price, benchmarks, and features.
VS
o3 Mini vs Claude Haiku 4.5
OpenAI vs Anthropic
See comparisonVSo3 Mini vs o4 Mini
OpenAI vs OpenAI
See comparisonVS
o3 Mini vs Gemini 2.5 Flash
OpenAI vs Google
See comparisonVS
o3 Mini vs Mistral Medium 3.5
OpenAI vs Mistral
See comparisonVS
o3 Mini vs R1 0528
OpenAI vs DeepSeek
See comparisonVS
o3 Mini vs Command A
OpenAI vs Cohere
See comparisonAlternatives
o3 Mini alternatives
Similar models worth considering, and where each one has the edge.
Anthropic
Claude Haiku 4.5
OpenAI
o4 Mini
Gemini 2.5 Flash
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does o3 Mini cost?
o3 Mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens through the API. A typical chat message costs about $4.40 per 1,000 messages.
What is the context window of o3 Mini?
o3 Mini accepts up to 200K tokens of input and can write up to 100K tokens in a single response.
What is the best alternative to o3 Mini?
Claude Haiku 4.5 from Anthropic is a strong alternative. It offers: higher intelligence score, accepts image, newer release.
Can I use o3 Mini alongside other models?
Yes. Shortcut Chat sends one prompt to o3 Mini and any other models you pick at the same time, so you can compare answers side by side.
Try o3 Mini next to every other model.
Use o3 Mini alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.