OpenAI Commercial APIStatus: active

GPT-4o mini

High-speed, ultra-affordable multimodal small model designed to replace GPT-3.5 Turbo at 60% lower cost.

Released: Jul 18, 2024
Last Verified: Aug 10, 2026
Context Window

128k

Tokens

Max Output

16.384k

Output limit

Architecture

Multimodal Small Transformer

Model family

Parameters

Not Disclosed

Total / Active

Input Token Cost

$0.15

Per 1M tokens

Output Token Cost

$0.60

Per 1M tokens

Model Overview

GPT-4o mini brings multimodal vision and text intelligence at an industry-disrupting price point of $0.15/MTok input and $0.60/MTok output. It supports tool calling, structured outputs, and fine-tuning.

Developer Implementation Notes

Supports strict structured outputs and vision inputs at miniature model pricing. 50% prompt cache discount brings input cost to $0.075/MTok.

Key Strengths

  • Incredible cost-to-performance ratio ($0.15 / MTok input)
  • Multimodal vision capabilities at budget pricing
  • High throughput rate limits on OpenAI platform
  • Supports fine-tuning

Limitations & Boundaries

  • Lower accuracy on deep mathematical proofs and Olympic competitions
  • Context window limited to 128k tokens

Capabilities & Modalities

Modalities:text, image
Reasoning Chains:No
Tool / Function Calling:Supported
Structured Outputs:Supported
Fine-Tuning:Supported
Local Deployment:Cloud Only

Best Production Use Cases

  • High-volume content moderation & classification
  • Customer support chatbots
  • Lightweight data parsing & batch JSON conversion

Verified Benchmark Results

Standardized evaluations with methodology notes and authoritative citation links.

View all industry benchmarks →
Coding Official
SWE-bench Verified

20.2%

Pass@1 standard scaffold

Coding Official
LiveCodeBench

32.4%

Pass@1, 0-shot

Reasoning & Math Official
GPQA Diamond

40.2%

Zero-shot Chain-of-Thought

General Knowledge & Frontier Official
MMLU-Pro

63.0%

5-shot CoT evaluation

Multimodal Official
MMMU

59.4%

Multimodal visual reasoning benchmark

Pricing & Inference Cost Calculator

Token Cost Estimator – GPT-4o mini

Calculate projected inference spend with prompt caching

Quick Workload Presets

Input Tokens / Req2,000
100100k200k
Output Tokens / Req500
5016k32k
Number of Requests1,000
125k50k
Cache Hit Rate0%
0% (No cache)50%90% (Max)
Total Input Spend

$0.3000

2.00M input tokens

Total Output Spend

$0.3000

0.50M output tokens

Estimated Total Cost

$0.60

Avg: $0.00060 / req

Rates: $0.15 in / $0.60 out per million tokens (OpenAI API)Last verified: Aug 10, 2026

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Data Accuracy & Verification Notice

AI model specifications, pricing records, and benchmark metrics published on this platform are compiled directly from authoritative sources (official provider documentation, research papers, and verified evaluation harnesses). Benchmark results reflect specific test harnesses and prompting methodologies; scores are not directly comparable across differing evaluation setups.