ZMIME
OpenAI · Released Jul 18, 2024

GPT-4o mini

Small omni GPT for cheap multimodal assistance and production-scale traffic.

  • Proprietary
  • Tool calling
  • Vision
Capability
126.6ECI · #135 of 148
Input
$0.15per 1M tokens
Output
$0.60per 1M tokens
Context
128K16K max output
Pricing

What it costs

Input
$0.15per million tokens
Output
$0.60per million tokens
Cached input
$0.075per million tokens
Blended (3:1)
$0.263cheaper than 73% of priced models

Typical monthly bills

Monthly usageEstimated cost
Side project2M input + 0.5M output tokens$0.60
Team assistant25M input + 5M output tokens$6.75
Production app250M input + 50M output tokens$67.50

Official OpenAI API price, as listed on models.dev.

Capability

Independent benchmarks

126.6Epoch Capabilities Index
#135 of 148 scored models
88Median 146167

The shaded band is Epoch AI’s confidence range (120.5–128.5); the tick marks the median scored model.

  • GPQA DiamondGraduate-level science questions37.7%
  • FrontierMath Tiers 1–3Research-level mathematics0.7%
  • OTIS Mock AIME 2024–2025Competition mathematics6.9%
  • SimpleQA VerifiedShort factual questions8.3%

Scores from Epoch AI, run independently of OpenAI.

Specifications

The details

Lab
OpenAI
Released
Jul 18, 2024
Knowledge cutoff
Sep 2023
Context window
128,000 tokens
Max output
16,384 tokens
Inputs
Text, Images, PDFs
Output
Text
Reasoning
No
Tool calling
Yes
Structured output
Yes
Weights
Proprietary
API model ID
gpt-4o-minion OpenAI
Availability
21 API providerslisted on models.dev

OpenAI model documentation

Lab-reported

What OpenAI claims

Published by the lab at launch. Settings vary, so compare these only with care.

BenchmarkScoreSettingSource
Aider Polyglot3.6 percent correct—Source
SciCode22.9 percent correct—Source
Same lab

More from OpenAI

Questions

About GPT-4o mini

How much does GPT-4o mini cost?

GPT-4o mini costs $0.15 input / $0.60 output per million tokens (official OpenAI API price). Cached input is $0.075 per million tokens. At a 3:1 input-to-output mix that is $0.263 per million tokens, cheaper than 73% of the 360 priced models we track.

What is the context window of GPT-4o mini?

GPT-4o mini accepts up to 128,000 tokens per request and can write up to 16,384 tokens in one response.

How good is GPT-4o mini?

Epoch AI gives GPT-4o mini a Capabilities Index score of 126.6 (likely range 120.5–128.5), ranking it #135 of 148 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 37.7%, FrontierMath Tiers 1–3 0.7%, OTIS Mock AIME 2024–2025 6.9%, SimpleQA Verified 8.3%.

Is GPT-4o mini open source?

No. GPT-4o mini is proprietary; you use it through OpenAI’s API or partner platforms.

What inputs does GPT-4o mini support?

GPT-4o mini accepts text, images and PDFs and replies in text. It is not a dedicated reasoning model, supports tool calling and can return structured JSON output.

When was GPT-4o mini released?

OpenAI released GPT-4o mini on Jul 18, 2024. Its training data runs to Sep 2023.

What are the best alternatives to GPT-4o mini?

The closest current models from other labs on capability, price and release date are Mistral Small 3.1 24B (Mistral AI, ECI 127.5, $0.229 / $0.436), Llama-3.1-70B-Instruct (Meta, ECI 125.9, $0.72 / $0.72), Claude Haiku 3.5 (Anthropic, ECI 127.2) and Qwen2.5 7B Instruct (Alibaba (Qwen), ECI 118.5, $0.175 / $0.70).