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GPT-5 Mini

OpenAI · 2025-08-07

GPT-5 Mini is the smaller, faster, lower-cost tier of OpenAI's GPT-5 generation, sitting between GPT-5 Nano and the full GPT-5 on capability. It targets cost-sensitive tasks that still benefit from GPT-5-family reasoning.

Benchmark scores

BenchmarkScore
AA-LCR68.0
AA-Omniscience Index-10.8
Agent Red Teaming k=100 (CAIS)84.3
AIME 2024 (avg@8)92.9
AIME 2024-202591.5
AIME 202585.0
AIME 2025 (avg@8)90.0
ALE-Bench1421
AlgoTune1.4
Apex (MathArena)1.0
Apex Shortlist39.9
ARC-AGI-154.3
ARC-AGI-24.0
Arena Text — Business, Management & Financial Ops (No Style Control)1358
Arena Text — Chinese (No Style Control)1389
Arena Text — Creative Writing (No Style Control)1327
Arena Text — English (No Style Control)1380
Arena Text — Entertainment, Sports & Media (No Style Control)1342
Arena Text — Exclude Ties (No Style Control)1343
Arena Text — Exclude Ties (Style Controlled)1366
Arena Text — Expert (No Style Control)1381
Arena Text — French (No Style Control)1380
Arena Text — French (Style Controlled)1401
Arena Text — German (No Style Control)1369
Arena Text — Hard Prompts (No Style Control)1380
Arena Text — Hard Prompts English (No Style Control)1386
Arena Text — Instruction Following (No Style Control)1359
Arena Text — Japanese (No Style Control)1344
Arena Text — Korean (No Style Control)1305
Arena Text — Legal & Government (No Style Control)1376
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