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Head-to-head comparison

Mistral Small 4 vs Qwen3.5 4B

Mistral Small 4 (Mistral AI) and Qwen3.5 4B (Qwen) 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 September 2026

As of 17 September 2026, Mistral Small 4 holds the stronger ModelCap Index position (#117 vs #120).

Which should you choose?

Choose Mistral Small 4 if…

  • you want the stronger overall ModelCap Index position — #117 against #120 (41.1 vs 39.7 points).
  • you want provider choice — 2 listed API providers against 0.
  • you want the more recently listed model — Mistral Small 4 was listed 16 March 2026, Qwen3.5 4B 27 February 2026.

Choose Qwen3.5 4B if…

  • ModelCap publishes no field on which Qwen3.5 4B leads Mistral Small 4 for this pair.

Mistral Small 4 vs Qwen3.5 4B: specs, pricing and context

Specification comparison of Mistral Small 4 and Qwen3.5 4B
FieldMistral Small 4Mistral AIQwen3.5 4BQwen
ModelCap Index position#117#120
Index score41.139.7
EvidenceMeasuredEstimated
Input price / 1M tokens$0.15Unlisted
Output price / 1M tokens$0.60Unlisted
Context window262K tokens— tokens
Max output tokens210K—
API providers listed20
Weight accessOpen weightsOpen weights
Input modalitiesText, ImageText, Image
First listed16 March 202627 February 2026
PublisherMistral AIQwen

Evidence: 1 public benchmark observation across 1 board · publisher-corpus-prior over 197 held-out anchors (28%); launch card against 3 resolved peers on 10 rows (72%); exceeds every named peer on 2 of 10 rows; optimism haircut 0.6 from cross-lab-probe; shrunk 4.3 up toward the measured corpus. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Mistral Small 4 vs Qwen3.5 4B

Public benchmark boards where Mistral Small 4 or Qwen3.5 4B has a published result
BoardMistral Small 4Qwen3.5 4BLeads
AA Intelligence IndexArtificial Analysis11.5intelligence-index:v4.3:reasoning-unspecified—Only one result
AA τ²-Bench TelecomArtificial Analysis—92.1%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Qwen3.5 4B (Reasoning)":reasoning=trueOnly one result
AA Humanity's Last ExamArtificial Analysis—9.9%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Qwen3.5 4B (Reasoning)":reasoning=trueOnly 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 4 vs Qwen3.5 4B: common questions

Is Mistral Small 4 better than Qwen3.5 4B?

Mistral Small 4 ranks higher on the ModelCap Index as of 17 September 2026: #117 against #120. 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. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is Mistral Small 4 cheaper than Qwen3.5 4B?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Mistral Small 4 or Qwen3.5 4B?

Both publish a 262K-token context window.

Which is better for coding, Mistral Small 4 or Qwen3.5 4B?

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 4 and Qwen3.5 4B open-weight models?

Mistral Small 4: Open weights. Qwen3.5 4B: Open weights. 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 4 and Qwen3.5 4B?

ModelCap currently lists 2 API providers for Mistral Small 4 and 0 for Qwen3.5 4B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Mistral Small 4 vs Qwen3.5 4B comparison?

Every figure comes from the sealed ModelCap dataset published 17 September 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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