OpenAI: GPT-5 Mini
The OpenAI GPT-5 Mini is a large language model capable of handling text, image, and file inputs with a maximum context length of 400,000 tokens. It supports tools and reasoning capabilities, but does not have structured output. This model's price point may be attractive to those who need its specific combination of input modalities and computational resources. For $0.25 per million input tokens and $2.00 per million output tokens, it offers a blended benchmark score of 27.5 across one independent benchmark. Those prioritizing these features and budget may consider shortlisting the GPT-5 Mini for further evaluation.
Benchmark results
Independent, published benchmarks. Blended score 24.2 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 27.7 |
- Model ID
- openai/gpt-5-mini
- Vendor
- openai
- Released
- August 2025
- Tokenizer
- GPT
- Input Modalities
- text, image, file
- Output Modalities
- text
- Max Output
- 128,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $0.25/M input and $2.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.23 |
| A month of a busy support chatbot | 5M in / 2M out | $5.25 |
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Quick answers
- How much does OpenAI: GPT-5 Mini cost?
- $0.25 per million input tokens and $2.00 per million output tokens.
- What is OpenAI: GPT-5 Mini's context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5 Mini support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5 Mini process images?
- Yes, it accepts image input.