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Head-to-head comparison

Mistral Small 3.2 24B vs GPT-5.5 Pro

Mistral Small 3.2 24B (Mistral AI) and GPT-5.5 Pro (OpenAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 17 August 2026

As of 17 August 2026, GPT-5.5 Pro holds the stronger ModelCap Index position (#76 vs #78); Mistral Small 3.2 24B is 720× cheaper per output token ($0.25/1M vs $180/1M); GPT-5.5 Pro offers the longer context window (1M vs 256K tokens); and Mistral Small 3.2 24B ships open weights.

Which should you choose?

Choose Mistral Small 3.2 24B if…

  • API cost matters — $0.25/1M output tokens against $180/1M, about 720× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.094/1M against $30.00/1M.
  • you want to self-host: Mistral Small 3.2 24B ships open weights while GPT-5.5 Pro is api only.
  • you want provider choice — 3 listed API providers against 1.

Choose GPT-5.5 Pro if…

  • you want the stronger overall ModelCap Index position — #76 against #78 (35.2 vs 32.7 points).
  • you need the longer context window — 1M tokens against 256K.
  • you want the more recently listed model — GPT-5.5 Pro was listed 24 April 2026, Mistral Small 3.2 24B 20 June 2025.

Mistral Small 3.2 24B vs GPT-5.5 Pro: specs, pricing and context

Specification comparison of Mistral Small 3.2 24B and GPT-5.5 Pro
FieldMistral Small 3.2 24BMistral AIGPT-5.5 ProOpenAI
ModelCap Index position#78#76
Index score32.735.2
EvidenceMeasuredMeasured
Input price / 1M tokens$0.094$30.00
Output price / 1M tokens$0.25$180
Context window256K tokens1M tokens
Max output tokens16K128K
API providers listed31
Weight accessOpen weightsAPI only
Input modalitiesImage, TextFile, Image, Text
First listed20 June 202524 April 2026
PublisherMistral AIOpenAI

Evidence: 2 public benchmark observations across 2 boards · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Mistral Small 3.2 24B vs GPT-5.5 Pro

Public benchmark boards where Mistral Small 3.2 24B or GPT-5.5 Pro has a published result
BoardMistral Small 3.2 24BGPT-5.5 ProLeads
Arena codingArena (LMArena)14121402–1422—Only one result
ARC-AGI-2ARC Prize Foundation—84.6%HighOnly one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Mistral Small 3.2 24B vs GPT-5.5 Pro: common questions

Is Mistral Small 3.2 24B better than GPT-5.5 Pro?

GPT-5.5 Pro ranks higher on the ModelCap Index as of 17 August 2026: #76 against #78. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Mistral Small 3.2 24B cheaper than GPT-5.5 Pro?

Mistral Small 3.2 24B is cheaper on output tokens: $0.25/1M against $180/1M. Input tokens are $0.094/1M for Mistral Small 3.2 24B and $30.00/1M for GPT-5.5 Pro. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, Mistral Small 3.2 24B or GPT-5.5 Pro?

GPT-5.5 Pro has the larger context window: 1M tokens against 256K.

Which is better for coding, Mistral Small 3.2 24B or GPT-5.5 Pro?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Mistral Small 3.2 24B and GPT-5.5 Pro open-weight models?

Mistral Small 3.2 24B: Open weights. GPT-5.5 Pro: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Mistral Small 3.2 24B and GPT-5.5 Pro?

ModelCap currently lists 3 API providers for Mistral Small 3.2 24B and 1 for GPT-5.5 Pro, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Mistral Small 3.2 24B vs GPT-5.5 Pro comparison?

Every figure comes from the sealed ModelCap dataset published 17 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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