Context Window

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GPT-4o-mini Search Preview vs Mistral Large 3 2512

This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.

Openai

Model

GPT-4o-mini Search Preview

Image inputTool calling

Context window

128K

128,000 tokens · ~96K words

Model page
Mistral

Model

Mistral Large 3 2512

Image inputTool calling

Context window

262K

262,144 tokens · ~197K words

Model page

Context window · side by side

Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.

GPT-4o-mini Search Preview128K
Mistral Large 3 2512262K

Mistral Large 3 2512 has about 2× the context window of the other in this pair.

Token calculator →Memory savings →

Mistral Large 3 2512 has 104% more context capacity (262K vs 128K tokens). GPT-4o-mini Search Preview is 70% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Mistral Large 3 2512. Its 262K context fits entire documents without chunking (vs 128K).

  • RAG / high-volume retrieval

    Use GPT-4o-mini Search Preview. Input tokens are 70% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Mistral Large 3 2512. Its 262K max output lets you generate complete artifacts in one request.

Full specs

Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.

SpecGPT-4o-mini Search PreviewMistral Large 3 2512
Context window128,000 tokens (128K)262,144 tokens (262K)
Max output tokens16,384 tokens (16K)262,144 tokens (262K)
Speed tierFastDeep
VisionYesYes
Function callingYesYes
Extended thinkingNoNo
Prompt cachingYesYes
Batch APIYesNo
Release dateMar 2025Dec 2025

Pricing matrix

Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.

ProviderGPT-4o-mini Search Preview inGPT-4o-mini Search Preview outMistral Large 3 2512 inMistral Large 3 2512 out
Mistral——$0.500/M$1.50/M
Openai$0.150/M$0.600/M——
Openrouter——$0.500/M$1.50/M

Frequently asked questions

Mistral Large 3 2512 has a larger context window: 262K tokens vs 128K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

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Example: a multi-turn chat session

Without Mem0~128K tokens sent
Full history
Repeated info
Old context
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Current turn

80% less to send — works with any model