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GPT-5GPT-5 Mini
GPT-5’s smaller, cheaper sibling. Optimized for chat and lightweight agent tasks.
Input / 1M
$0.50
Output / 1M
$2.00
Context
256K
Released
Jan 21, 2026
Benchmark profile
Profile
MMLU-Pro78.5%
HumanEval85.5%
MATH79.8%
IFEval85.4%
ARC-AGI79.8%
GSM8K79.8%
Scores
Editorial
Strengths
- +Very low latency
- +Cheap enough for mass consumer apps
Trade-offs
- −Weaker on long-horizon reasoning
Price history (last 90 days)
Input / 1M
Output / 1M
What this costs to use
All task cards →Recommended alternatives
Where to buy
All providers →Input pricing · $/1M tokens · sorted cheapest first