OpenAI

GPT-4o-mini (2024-07-18) API pricing.

GPT-4o-mini (2024-07-18) is OpenAI’s model on the API market, released 18 Jul 2024. Prices are per million tokens in USD, as last read from the price list.

$0.15Input / 1M
$0.60Output / 1M
128KContext
16KMax output
Capability scores
Epoch AI
Epoch Capabilities Index
126
Range 121 to 129 · #178 of 271 models Epoch has scored

The index combines many benchmarks into one general-capability score; the range is how sure Epoch is of the number. Each area score is this site's average of the model's Epoch results in that area, where 0 is what guessing would score and 100 is perfect. Compare every model, and value for money →

Source: Epoch AI, Capabilities & benchmarking (licensed CC BY 4.0). Data refreshed 2 November 2026. These are Epoch's own tests; other benchmark sites can rank models differently.

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Our working on Epoch's index
  1. GLM-5.3-Flash · Z.ai (Zhipu AI)index 153.22 · 83% cheaper
  2. Qwen3.7 Flash · Alibabaindex 144.14 · 79% cheaper
  3. gpt-oss-20b · OpenAIindex 137.75 · 79% cheaper
  4. Gemma 3 12B · Google DeepMindindex 123.5 (3 below) · 71% cheaper

Models within 5 points of GPT-4o-mini (2024-07-18) on Epoch's Capabilities Index that cost less, comparing a typical chat mix (three parts input to one part output). A few points of index is a small difference and says nothing about your task: a place to start testing, not a verdict. Capability against price for every model.

Specification
USD per million tokens
Provider
OpenAI
Model id
openai/gpt-4o-mini-2024-07-18
Input
$0.15
Output
$0.60
Cached input
$0.075
Context window
128K tokens
Maximum output
16K tokens
Takes
text, image, file
Returns
text
Tool use
Yes
Reasoning
Not reported
Released
18 Jul 2024
First tracked
17 Sept 2026

At $0.15 per million input tokens, GPT-4o-mini (2024-07-18) is dearer than 85 of the 340 models on the price list.

Price changes
Tracked since 17 Sept 2026

No price change has been recorded since tracking began on 17 Sept 2026. Prices are checked every six hours, and any change is listed here and on model changes.

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More from OpenAI
Cheapest input first
  1. gpt-oss-20b$0.030 in · $0.13 out
  2. GPT-5 Nano$0.050 in · $0.40 out
  3. gpt-oss-safeguard-20b$0.075 in · $0.30 out
  4. GPT-6 Luna Pro$0.10 in · $0.50 out
  5. GPT-6 Luna$0.10 in · $0.50 out
  6. GPT-4.1 Nano$0.10 in · $0.40 out
  7. gpt-oss-120b$0.15 in · $0.60 out
  8. GPT-4o-mini$0.15 in · $0.60 out

Prices and specifications come from OpenRouter’s catalogue, last read 2 Nov 2026. A provider’s own price may differ; how this is collected.