GPT-5.1-Codex-Mini vs Mistral Large 4

Price, context window & benchmark comparison

GPT-5.1-Codex-Mini

OpenAI

$0.25 / $2.00

Input / Output · per 1M tokens

Mistral Large 4

Mistral AI

$0.70 / $2.10

Input / Output · per 1M tokens

Compare different models

Verdict: GPT-5.1-Codex-Mini is 35% cheaper than Mistral Large 4 on a typical 3:1 input/output mix. Mistral Large 4 has the larger context window (1M vs 400K).

	GPT-5.1-Codex-Mini	Mistral Large 4
Input price / 1M	$0.25	$0.70
Output price / 1M	$2.00	$2.10
Blended price (3:1)	$0.69	$1.05
Cached input / 1M	$0.03	$0.07
Context window	400K	1M
Max output	128K	262K
Intelligence index	—	26.1
Coding index	—	—
Providers	—	2
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2025-11-13	2026-10-06
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, GPT-5.1-Codex-Mini or Mistral Large 4?

GPT-5.1-Codex-Mini is 35% cheaper than Mistral Large 4 on a typical 3:1 input/output mix.

GPT-5.1-Codex-Mini vs Mistral Large 4: which has a bigger context window?

GPT-5.1-Codex-Mini: 400,000 tokens. Mistral Large 4: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-5.1-Codex-Mini ≈ $1,500, Mistral Large 4 ≈ $2,450.

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