OpenAI: o3 Mini
Analysis Summary
o3 Mini is an earlier compact reasoning model from OpenAI, offering tool use, function calling, and file input support within a 200K context window. Its intelligence and agentic scores are modest compared to current frontier releases.
It remains usable for lighter reasoning tasks, quick file-based queries, and simple tool-calling workflows, but businesses needing strong coding or complex multi-step reasoning will find newer OpenAI models more capable.
Pricing is moderate for its capability tier, making it a reasonable fallback option rather than a primary choice for demanding workloads.
Assessed July 19, 2026
Editorial notes
OpenAI's o3 Mini offers tool use and file handling with moderate reasoning scores, but has since been superseded by stronger OpenAI reasoning models.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
OpenAI's o3 Mini offers tool use and file handling with moderate reasoning scores, but has since been superseded by stronger OpenAI reasoning models.
How OpenAI: o3 Mini compares
OpenAI: o3 Mini ranks #156 of 393 AI models we track for overall intelligence, #193 of 300 for agentic tasks. Its 200K-token context window is larger than 63% of the models we list. At $1.10 per million input tokens it is cheaper than 23% of comparable models.
Dark bar = input Ā· light bar = output, scaled to the priciest peer.
1M tokens ā 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side āPricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $1.10 | $0.001100 |
| Output | $4.40 | $0.004400 |
What would OpenAI: o3 Mini cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 612 models ā Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: o3 Mini for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout OpenAI: o3 Mini
OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the reasoning_effort parameter, which can be set to..
Frequently asked questions about OpenAI: o3 Mini
How much does OpenAI: o3 Mini cost?
OpenAI: o3 Mini costs $1.10 per million input tokens and $4.40 per million output tokens.
What is the context window of OpenAI: o3 Mini?
OpenAI: o3 Mini has a context window of 200,000 tokens (200K).
What can OpenAI: o3 Mini do?
OpenAI: o3 Mini supports tool use and function calling.
Who created OpenAI: o3 Mini?
OpenAI: o3 Mini is developed by OpenAI and was released on January 31, 2025.
