OpenAI: GPT-5 Mini

File input Text input Image input Text output
Author's Description

GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost. GPT-5 Mini is the successor to OpenAI's o4-mini model.

Key Specifications
Cost
$$$$$
Context
400K
Released
Aug 07, 2025
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Include Reasoning Reasoning Tool Choice Max Tokens Structured Outputs Seed Tools Response Format
Features

This model supports the following features:

Tools Reasoning Response Format Structured Outputs
Performance Summary

GPT-5 Mini, a compact version of GPT-5, demonstrates moderate speed performance, ranking in the 36th percentile across benchmarks. Its pricing is also moderate, placing it in the 27th percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all evaluated benchmarks, indicating minimal technical failures. The model excels in knowledge-based tasks and hallucination prevention, achieving perfect 100% accuracy in both General Knowledge and Hallucinations benchmarks. It is noted as the most accurate model at its price point and speed for these categories. GPT-5 Mini also shows strong performance in complex reasoning, instruction following, mathematics, and coding, ranking in the 87th, 86th, 88th, and 95th percentiles for accuracy respectively. While its Ethics accuracy is 98.0% (39th percentile) and Email Classification is 97.0% (47th percentile), these are still solid results. Its key strengths lie in its high accuracy across a broad range of challenging tasks, particularly in areas requiring deep understanding and precise execution, coupled with its robust reliability. No significant weaknesses were identified in its performance.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $0.25
Completion $2
Input Cache Read $0.025
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-5-mini-2025-08-07 400K $0.25 / 1M tokens $2 / 1M tokens
Azure
Azure | openai/gpt-5-mini-2025-08-07 400K $0.25 / 1M tokens $2 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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