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GPT 5.1 Codex Mini

NanoGPT

GPT 5.1 Codex Mini by NanoGPT costs $0.25 per 1M input tokens and $2.00 per 1M output tokens, with a 400K-token context window.

Pricing

Input (per 1M tokens)
$0.25
Output (per 1M tokens)
$2.00
Cached input (per 1M)
—

Specifications

Provider
NanoGPT
Context window
400K tokens
Parameters
—
Released
Nov 2025
Open weights
No
Frontier model
No

Benchmarks

LiveBenchreasoning/coding
60.8

Compare GPT 5.1 Codex Mini with…

GPT 5.1 Codex Mini vs Claw Low$1.50/1MGPT 5.1 Codex Mini vs Gemini 3 Pro Image$12.00/1MGPT 5.1 Codex Mini vs Gemma 4 31B Garnet$0.31/1MGPT 5.1 Codex Mini vs Doubao 1.5 Vision Pro 32k$1.38/1MGPT 5.1 Codex Mini vs GLM 4.5$1.30/1MGPT 5.1 Codex Mini vs Auto model (Standard)$19.99/1M

FAQ

Pricing is per 1M tokens (USD); confirm with the provider before production use.