Glimmer Index
Plus $4/mo

GPT-5 Mini

OpenAI · Released Aug 7, 2025 · Closed weights

Small GPT-5 for responsive agents, coding help, and everyday automation

Strongest at
Coding
Better than 21% of the past year's models · one benchmark so far
Price per 1M tokens
$0.25 / $2
input / output · OpenAI
Context window
400K
tokens in · 128K out
Since the last one
115 days
after GPT-4.1 mini
Open in the timeline

Capability profile

Scored against 91 models released in the past year. 50 is the average model; further out is better.

This modelGPT-4.1 miniMedian of the past year
5090Median of the past yearGPT-4.1 miniCoding: 41 · Better than 21%Reasoning: 44 · Better than 15%Math: 47 · Better than 15%Science: 54 · Better than 19%CodingReasoningMathScience
Coding41−0.6Better than 21% · 1 test
Reasoning44+8.3Better than 15%
Math47+10.8Better than 15%
Science54+7.0Better than 19%

No results yet: Writing, Reading & documents, Visual reasoning, Computer use

Where these scores come from

Each capability combines the published benchmarks listed here, rescaled so 50 is the reference average and 15 points is one standard deviation. A hollow dot rests on a single benchmark.

Price against capability

The shaded corner holds anything better and cheaper. Prices blend input and output 3 to 1.

7 models from the past year score higher on Coding for less: DeepSeek V4.1 Flash, DeepSeek V3.2, Claude Haiku 5.5 and 4 more.

$0.3$1$3$10020406080Claude Haiku 5.5: 60, $0.2 per 1MMistral Large 4: 56, $2.06 per 1MGemini 4 Argon: 65, $4 per 1MGPT-6.1 Sol: 64, $4 per 1MClaude Sonnet 5.5: 71, $4 per 1MGPT-6 Sol: 62, $4 per 1MGPT-6 Luna: 55, $0.2 per 1MClaude Opus 5.5: 79, $8 per 1MGrok 4.7: 59, $3 per 1MDeepSeek V4.1 Flash: 72, $0.21 per 1MGPT-6 Astra: 73, $20 per 1MMuse Spark 1.3: 69, $2 per 1MGemini 3.8 Flash: 57, $1.5 per 1MClaude Fable 5.1: 85, $20 per 1MGLM-5.3-Flash: 54, $0.24 per 1MDeepSeek V4 Flash Vision Exp: 55, $0.32 per 1MQwen3.8 27B: 60, $1.12 per 1MGLM-5.3: 60, $2.15 per 1MGemini 3.7 Flash: 59, $1.5 per 1MDeepSeek V4 Pro 0813: 49, $0.99 per 1MGrok 4.6: 60, $3 per 1MMuse Spark 1.2: 53, $2 per 1MQwen3.8 Max: 55, $3 per 1MDeepSeek V4 Flash 0731: 38, $0.15 per 1MClaude Opus 5: 69, $10 per 1MGemini 3.6 Flash: 44, $1.5 per 1MGemini 3.5 Flash Lite: 41, $0.85 per 1MKimi K3: 63, $6 per 1MGPT-5.6 Terra: 58, $4.5 per 1MGPT-5.6 Sol: 68, $8 per 1MGPT-5.6 Luna: 56, $0.45 per 1MGrok 4.5: 50, $3 per 1MClaude Sonnet 5: 60, $4 per 1MGLM-5.2: 48, $2.15 per 1MKimi K2.7 Code: 36, $1.71 per 1MClaude Fable 5: 77, $20 per 1MQwen3.7 Plus: 25, $0.7 per 1MClaude Opus 4.8: 62, $10 per 1MQwen3.7 Max: 48, $3.75 per 1MGemini 3.5 Flash: 47, $3.38 per 1MDeepSeek V4 Pro: 41, $1.19 per 1MDeepSeek V4 Flash: 23, $0.18 per 1MGPT-5.5: 58, $11.2 per 1MQwen3.6 27B: 29, $1.35 per 1MKimi K2.6: 52, $1.71 per 1MGrok 4.3: 1, $1.56 per 1MGrok Build 0.1: 29, $1.25 per 1MClaude Opus 4.7: 60, $10 per 1MMuse Spark 1.1: 52, $2 per 1MGLM-5.1: 55, $2.15 per 1MQwen3.6 Plus: 39, $1.12 per 1MGPT-5.4 nano: 36, $0.46 per 1MGPT-5.4 mini: 37, $1.69 per 1MGPT-5.4: 52, $5.62 per 1MGemini 3.1 Pro Preview: 38, $4.5 per 1MClaude Sonnet 4.6: 35, $6 per 1MGLM-5: 52, $1.55 per 1MGPT-5.3 Codex: 56, $4.81 per 1MClaude Opus 4.6: 54, $10 per 1MKimi K2.5: 54, $1 per 1MGemini 3 Flash Preview: 49, $1.12 per 1MGPT-5.2 Codex: 55, $4.81 per 1MGPT-5.2: 57, $4.81 per 1MDeepSeek V3.2: 68, $0.32 per 1MClaude Opus 4.5: 59, $10 per 1MGPT-5.1: 46, $3.44 per 1MGPT-4.1 mini: 42, $0.7 per 1MGPT-5 Mini: 41, $0.69 per 1MGPT-5 MiniPrice per 1M tokens →↑ Coding$1$10020406080Claude Haiku 5.5: 60, $0.2 per 1MMistral Large 4: 56, $2.06 per 1MGemini 4 Argon: 65, $4 per 1MGPT-6.1 Sol: 64, $4 per 1MClaude Sonnet 5.5: 71, $4 per 1MGPT-6 Sol: 62, $4 per 1MGPT-6 Luna: 55, $0.2 per 1MClaude Opus 5.5: 79, $8 per 1MGrok 4.7: 59, $3 per 1MDeepSeek V4.1 Flash: 72, $0.21 per 1MGPT-6 Astra: 73, $20 per 1MMuse Spark 1.3: 69, $2 per 1MGemini 3.8 Flash: 57, $1.5 per 1MClaude Fable 5.1: 85, $20 per 1MGLM-5.3-Flash: 54, $0.24 per 1MDeepSeek V4 Flash Vision Exp: 55, $0.32 per 1MQwen3.8 27B: 60, $1.12 per 1MGLM-5.3: 60, $2.15 per 1MGemini 3.7 Flash: 59, $1.5 per 1MDeepSeek V4 Pro 0813: 49, $0.99 per 1MGrok 4.6: 60, $3 per 1MMuse Spark 1.2: 53, $2 per 1MQwen3.8 Max: 55, $3 per 1MDeepSeek V4 Flash 0731: 38, $0.15 per 1MClaude Opus 5: 69, $10 per 1MGemini 3.6 Flash: 44, $1.5 per 1MGemini 3.5 Flash Lite: 41, $0.85 per 1MKimi K3: 63, $6 per 1MGPT-5.6 Terra: 58, $4.5 per 1MGPT-5.6 Sol: 68, $8 per 1MGPT-5.6 Luna: 56, $0.45 per 1MGrok 4.5: 50, $3 per 1MClaude Sonnet 5: 60, $4 per 1MGLM-5.2: 48, $2.15 per 1MKimi K2.7 Code: 36, $1.71 per 1MClaude Fable 5: 77, $20 per 1MQwen3.7 Plus: 25, $0.7 per 1MClaude Opus 4.8: 62, $10 per 1MQwen3.7 Max: 48, $3.75 per 1MGemini 3.5 Flash: 47, $3.38 per 1MDeepSeek V4 Pro: 41, $1.19 per 1MDeepSeek V4 Flash: 23, $0.18 per 1MGPT-5.5: 58, $11.2 per 1MQwen3.6 27B: 29, $1.35 per 1MKimi K2.6: 52, $1.71 per 1MGrok 4.3: 1, $1.56 per 1MGrok Build 0.1: 29, $1.25 per 1MClaude Opus 4.7: 60, $10 per 1MMuse Spark 1.1: 52, $2 per 1MGLM-5.1: 55, $2.15 per 1MQwen3.6 Plus: 39, $1.12 per 1MGPT-5.4 nano: 36, $0.46 per 1MGPT-5.4 mini: 37, $1.69 per 1MGPT-5.4: 52, $5.62 per 1MGemini 3.1 Pro Preview: 38, $4.5 per 1MClaude Sonnet 4.6: 35, $6 per 1MGLM-5: 52, $1.55 per 1MGPT-5.3 Codex: 56, $4.81 per 1MClaude Opus 4.6: 54, $10 per 1MKimi K2.5: 54, $1 per 1MGemini 3 Flash Preview: 49, $1.12 per 1MGPT-5.2 Codex: 55, $4.81 per 1MGPT-5.2: 57, $4.81 per 1MDeepSeek V3.2: 68, $0.32 per 1MClaude Opus 4.5: 59, $10 per 1MGPT-5.1: 46, $3.44 per 1MGPT-4.1 mini: 42, $0.7 per 1MGPT-5 Mini: 41, $0.69 per 1MGPT-5 MiniPrice per 1M tokens →↑ Coding

OpenAI $0.25 / $2 · OpenRouter $0.25 / $2 · Cached input $0.025

Since GPT-4.1 mini

4 releases in the GPT-5.4 mini line.

GPT-4o miniJul 18, 2024270dGPT-4.1 miniApr 14, 2025115dGPT-5 MiniAug 7, 2025222dGPT-5.4 miniMar 17, 2026
Released115 days later
Price in / out$0.25 / $2−2%
Context400Kwas 1.05M
Coding41−0.6
Reasoning44+8.3
Math47+10.8
Science54+7.0

A newer release is out: GPT-5.4 mini.

ECI STANDING#89 of 270
SCORE145.34143.33–147.11 CI
FRONTIER LAGLaunched 3.7 months behindScores about what o3 did in April 2025.
SCORES LIKE THESE MODELSo4-miniOpenAI · Apr 2025145.46
Gemini 2.5 Pro (Jun 2025)Google DeepMind · Jun 2025145.13
DeepSeek-V3.2-ExpDeepSeek · Sep 2025144.91Gemini 3.5 Flash-LiteGoogle DeepMind · Jul 2026144.91
Full Epoch Capabilities Index ranking ↗

Epoch benchmark boards

Best result on each board it has run. The tick marks the leader.

MATH level 5
98%#2 of 98
Fiction.LiveBench
69%#18 of 58
WeirdML
53%#47 of 141
OTIS Mock AIME 2024-2025
87%#75 of 216
VPCT
40%#13 of 29
DTBench
80%#81 of 179
ARC-AGI
54%#61 of 107
Chess Puzzles
24%#54 of 93
8 more boards
FrontierMath-Tiers-1-3-v2-Private
47%#55 of 90
ARC-AGI-2
4%#71 of 103
Terminal Bench
35%#35 of 50
SWE-Bench verified
65%#26 of 32
FrontierMath-Tier-4-v2-Private
12%#59 of 72
ProofBench
9%#67 of 81
Mystery Game Puzzles
10%#73 of 88
SimpleQA Verified
22%#71 of 85

OpenAI's past year

24 release days in the past year, about one every 15 days. The next is expected around Nov 8, 2026. Forecasts ↗

NovDecJanFebMarAprMayJunJulAugSepOctNov

Specifications

RELEASE DATEAug 7, 2025
WEIGHTSClosed weights
CONTEXT WINDOW400K
MAX OUTPUT128K
REASONINGNot listed
TOOL CALLINGNot listed
INPUTStext, image/jpeg, image/png, image/gif, image/webp
OUTPUTStext

Models.dev record ↗

Specifications and prices from Models.dev; availability and limits may differ by provider. Benchmarks from Epoch AI (CC BY 4.0), LiveBench and the other sources named above.