OpenAI: GPT-5 Mini

by OpenAI

GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost. GPT-5 Mini is the successor to OpenAI's o4-mini model.

Avg Score

80.1%

238 answers

Avg Latency

8.9s

15 runs

Pricing

$0.25

input

$2.00

output

per 1M tokens

Context

400K

tokens

Alternatives

Models with similar or better quality but different tradeoffs

Same Quality, Cheaper

Models with similar or better performance at a lower cost per token.

Model	Cost
Google: Gemini 2.0 Flash	-96%
DeepSeek: DeepSeek V3.2	-90%
Anthropic: Claude 3 Haiku	-86%
DeepSeek: DeepSeek V3 0324	-85%
MoonshotAI: Kimi K2 Thinking	-66%

Same Quality, Faster

Models with similar or better performance but lower latency.

Model	Latency
Google: Gemini 2.0 Flash	-87%
Google: Gemini 2.5 Flash	-84%
Anthropic: Claude 3 Haiku	-81%
Google: Gemini 3 Flash Preview	-79%
Anthropic: Claude Haiku 4.5	-78%

Same Cost, Better

Models at a similar price point with higher benchmark scores.

Model	Score
Google: Gemini 3 Flash Preview	+10%
MoonshotAI: Kimi K2 Thinking	+1%

Other Models from OpenAI

Compare performance with other models from the same creator

Model	Score	Latency	Cost/1M
OpenAI: GPT-5.2	87.1%	4.9s	$7.88
OpenAI: GPT-5.2 Pro	85.5%	18.4s	$94.50
OpenAI: GPT-5.2 Chat	84.9%	4.2s	$7.88
OpenAI: GPT-5 Nano	78.7%	13.3s	$0.22
OpenAI: gpt-oss-20b	73.3%	6.4s	$0.06
OpenAI: gpt-oss-120b	48.3%	11.2s	$0.11
OpenAI: GPT-5.1-Codex-Max	—	—	$5.63
OpenAI: GPT-5.1	—	—	$5.63
OpenAI: GPT-5.1 Chat	—	—	$5.63
OpenAI: GPT-5.1-Codex	—	—	$5.63
OpenAI: GPT-5.1-Codex-Mini	—	—	$1.13
OpenAI: gpt-oss-safeguard-20b	—	—	$0.19
OpenAI: GPT-5 Image Mini	—	—	$2.25
OpenAI: GPT-5 Image	—	—	$10.00
OpenAI: o3 Deep Research	—	—	$25.00
OpenAI: o4 Mini Deep Research	—	—	$5.00
OpenAI: GPT-5 Pro	—	—	$67.50
OpenAI: GPT-5 Codex	—	—	$5.63
OpenAI: GPT-4o Audio	—	—	$6.25
OpenAI: GPT-5 Chat	—	—	$5.63
OpenAI: GPT-5	—	—	$5.63
OpenAI: gpt-oss-120b	—	—	$0.0000
OpenAI: gpt-oss-120b	—	—	$0.11
OpenAI: gpt-oss-20b	—	—	$0.0000
OpenAI: o3 Pro	—	—	$50.00
OpenAI: Codex Mini	—	—	$3.75
OpenAI: o4 Mini High	—	—	$2.75
OpenAI: o3	—	—	$5.00
OpenAI: o4 Mini	—	—	$2.75
OpenAI: GPT-4.1	—	—	$5.00
OpenAI: GPT-4.1 Mini	—	—	$1.00
OpenAI: GPT-4.1 Nano	—	—	$0.25
OpenAI: o1-pro	—	—	$375.00
OpenAI: GPT-4o-mini Search Preview	—	—	$0.38
OpenAI: GPT-4o Search Preview	—	—	$6.25
OpenAI: o3 Mini High	—	—	$2.75
OpenAI: o3 Mini	—	—	$2.75
OpenAI: o1	—	—	$37.50
OpenAI: GPT-4o (2024-11-20)	—	—	$6.25
OpenAI: ChatGPT-4o	—	—	$10.00
OpenAI: GPT-4o (2024-08-06)	—	—	$6.25
OpenAI: GPT-4o-mini (2024-07-18)	—	—	$0.38
OpenAI: GPT-4o-mini	—	—	$0.38
OpenAI: GPT-4o (2024-05-13)	—	—	$10.00
OpenAI: GPT-4o	—	—	$6.25
OpenAI: GPT-4o	—	—	$12.00
OpenAI: GPT-4 Turbo	—	—	$20.00
OpenAI: GPT-3.5 Turbo (older v0613)	—	—	$1.50
OpenAI: GPT-4 Turbo Preview	—	—	$20.00
OpenAI: GPT-4 Turbo (older v1106)	—	—	$20.00
OpenAI: GPT-3.5 Turbo Instruct	—	—	$1.75
OpenAI: GPT-3.5 Turbo 16k	—	—	$3.50
OpenAI: GPT-4 (older v0314)	—	—	$45.00
OpenAI: GPT-4	—	—	$45.00
OpenAI: GPT-3.5 Turbo	—	—	$1.00

Benchmark Performance

How this model performs across different benchmarks

Benchmark	Score	Rank
Math Bench: Addition (1-10)	100.0%	14 / 35
Math Bench: Subtraction (1-10)	100.0%	16 / 35
Math Bench: Multiplication (1-10)	100.0%	16 / 35
Math Bench: Division (1-10)	100.0%	21 / 35
Math Bench: Arithmetic (1-100)	100.0%	17 / 35
Math Bench: Arithmetic (1-1000)	100.0%	13 / 35
Venture Capital Terms Benchmark	100.0%	10 / 25
Motor production test	100.0%	13 / 36
Spatial Reasoning: Germany	94.5%	11 / 35
Character Frequency Bench	90.9%	11 / 35
Karlsruhe Local Knowledge Benchmark	76.8%	20 / 35
Product Recommendations	76.3%	16 / 36
Money Boy Cultural Literacy Test	37.1%	14 / 35
German Memelord Bench	14.5%	20 / 35
Karl Lorey knowlege	8.9%	12 / 36

Price vs Performance

Compare cost efficiency across all models

Current model

Other models

X-axis uses log scale for better visualization of price range

Score Over Time

Performance trends across all benchmark runs

Benchmark Activity

Number of benchmark runs over time

Quickstart

Get started with this model using OpenRouter

View on OpenRouter

import { OpenRouter } from "@openrouter/sdk";

const openrouter = new OpenRouter({
  apiKey: "<OPENROUTER_API_KEY>"
});

const completion = await openrouter.chat.completions.create({
  model: "openai/gpt-5-mini",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

console.log(completion.choices[0].message.content);

Get your API key at openrouter.ai/keys