GPT 5.4 Mini vs Mistral Large 2

Direct comparison between openai and mistral for chat models. Specs, prices, strengths, weaknesses — decide on facts.

At a glance

  • · Cheaper: GPT 5.4 Mini
  • · Longer context window: GPT 5.4 Mini at 400,000 tokens
  • · GPT 5.4 Mini: Fraction of GPT-5.4 cost with very similar tool-use quality
  • · Mistral Large 2: EU-hosted — GDPR-friendly without US data export

Spec comparison

SpecGPT 5.4 MiniMistral Large 2
Provideropenaimistral
Input per 1M tokens$0.75 / 1M$2.00 / 1M
Output per 1M tokens$4.50 / 1M$6.00 / 1M
Context window400,000 tok128,000 tok
Max output16,384 tok8,192 tok
Knowledge cutoff2026-01
Vision
Tool calling
JSON mode
Structured output

GPT 5.4 Mini — strengths

  • +Fraction of GPT-5.4 cost with very similar tool-use quality
  • +Low latency — good for realtime chat and inline completion
  • +Same 400k context window as the full-size model

Mistral Large 2 — strengths

  • +EU-hosted — GDPR-friendly without US data export
  • +Strong on European languages (DE, FR, IT, ES)
  • +Solid tool calling and JSON mode

GPT 5.4 Mini — weaknesses

  • No dedicated reasoning mode — complex math degrades
  • On very long tool-call chains, drift detection is weaker

Mistral Large 2 — weaknesses

  • Code quality behind Sonnet 4.6 and GPT-5.4
  • No native vision
Details: GPT 5.4 MiniDetails: Mistral Large 2