openai

OpenAI: GPT-5 Mini

The OpenAI GPT-5 Mini is designed to handle text, images, and file inputs within a vast context length of 400,000 tokens, making it suitable for complex tasks that require extensive data processing. It supports reasoning and integrates tools, allowing for more dynamic interactions. However, the model does not offer structured output or open weights. For those prioritizing cost-effectiveness and broad capability across multiple input modalities, GPT-5 Mini might be worth considering. With a blended benchmark score of 33.2 across three independent benchmarks, it performs adequately but may not excel in specialized tasks. The pricing at $0.25 per million input tokens and $2.0 per million output tokens makes it relatively expensive compared to other models.

Quality Score
100/100
price + capability + benchmarks
Input Price
$0.25
per 1M tokens
Output Price
$2.00
per 1M tokens
Context Window
400,000
tokens

Benchmark results

Independent, published benchmarks. Blended score 33.2 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 42.6
AI Index Coding software engineering tasks 25.7
AI Index Agentic multi-step tool-using tasks 32.4
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 →

JobTokensCost
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

Similar models

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.