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OpenAI: o3 Mini API Pricing
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...
How much does OpenAI: o3 Mini cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: o3 Mini costs about $19.8 ($11 input + $8.8 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to OpenAI: o3 Mini?
- Google: Gemini 3.5 Flash (batch) — $0.75 in / $4.5 out per 1M
- OpenAI: GPT Mini Latest — $0.75 in / $4.5 out per 1M
- OpenAI: GPT-5.4 Mini — $0.75 in / $4.5 out per 1M
- Z.ai: GLM 5V Turbo — $1.2 in / $4 out per 1M
- Z.ai: GLM 5 Turbo — $1.2 in / $4 out per 1M
- Thinking Machines: Inkling — $1 in / $4.05 out per 1M
Compare OpenAI: o3 Mini with other models
OpenAI: o3 Mini vs OpenAI: gpt-oss-20bOpenAI: o3 Mini vs OpenAI: gpt-oss-20b (batch)OpenAI: o3 Mini vs OpenAI: gpt-oss-120b (batch)OpenAI: o3 Mini vs OpenAI: GPT-5 Nano (batch)OpenAI: o3 Mini vs OpenAI: GPT-4.1 Nano (batch)OpenAI: o3 Mini vs OpenAI: GPT-6 Luna Pro (batch)
Frequently asked questions
How much does OpenAI: o3 Mini cost?
OpenAI: o3 Mini costs $1.1 per 1M input tokens and $4.4 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $19.8.
What is the context window of OpenAI: o3 Mini?
OpenAI: o3 Mini has a context window of 200,000 tokens and can return up to 100,000 output tokens per response.
What are cheaper alternatives to OpenAI: o3 Mini?
Cheaper models include Google: Gemini 3.5 Flash (batch) ($0.75 in / $4.5 out), OpenAI: GPT Mini Latest ($0.75 in / $4.5 out), OpenAI: GPT-5.4 Mini ($0.75 in / $4.5 out). See the full list on this page.
Is OpenAI: o3 Mini free to use?
No. OpenAI: o3 Mini is a paid model at $1.1 input / $4.4 output per 1M tokens. 20 free models are listed on the free models page.
Provider: openai · Model ID: openai/o3-mini · Modality: text+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices