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Head-to-head comparison

Mistral Medium 3.5 vs UI Mate 27B

Mistral Medium 3.5 (Mistral AI) and UI Mate 27B (Tencent) 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 19 September 2026

As of 19 September 2026, Mistral Medium 3.5 holds the stronger ModelCap Index position (#62 vs #65); and UI Mate 27B ships open weights.

Which should you choose?

Choose Mistral Medium 3.5 if…

  • you want the stronger overall ModelCap Index position — #62 against #65 (58.1 vs 57.9 points).
  • you want provider choice — 1 listed API providers against 0.

Choose UI Mate 27B if…

  • you want to self-host: UI Mate 27B ships open weights while Mistral Medium 3.5 is api only.
  • you want the more recently listed model — UI Mate 27B was listed 14 August 2026, Mistral Medium 3.5 30 April 2026.

Mistral Medium 3.5 vs UI Mate 27B: specs, pricing and context

Specification comparison of Mistral Medium 3.5 and UI Mate 27B
FieldMistral Medium 3.5Mistral AIUI Mate 27BTencent
ModelCap Index position#62#65
Index score58.157.9
EvidenceMeasuredInherited
Input price / 1M tokens$1.50Unlisted
Output price / 1M tokens$7.50Unlisted
Context window262K tokens— tokens
Max output tokens210K—
API providers listed10
Weight accessAPI onlyOpen weights
Input modalitiesText, Image, FileText, Image
First listed30 April 202614 August 2026
PublisherMistral AITencent

Evidence: 4 public benchmark observations across 4 boards · finetune of qwen/qwen3.6-27b · finetune (100%). Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Mistral Medium 3.5 vs UI Mate 27B

Public benchmark boards where Mistral Medium 3.5 or UI Mate 27B has a published result
BoardMistral Medium 3.5UI Mate 27BLeads
Arena codingArena (LMArena)14791468–1490—Only one result
LMArena AgentLMArena-10.9%-12.3%–-9.4%—Only one result
AA Intelligence IndexArtificial Analysis14.2intelligence-index:v4.3:reasoning-unspecified—Only one result
AA τ²-Bench TelecomArtificial Analysis94.2%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Mistral Medium 3.5":reasoning=true—Only one result
AA Humanity's Last ExamArtificial Analysis13.8%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Mistral Medium 3.5":reasoning=true—Only 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 Medium 3.5 vs UI Mate 27B: common questions

Is Mistral Medium 3.5 better than UI Mate 27B?

Mistral Medium 3.5 ranks higher on the ModelCap Index as of 19 September 2026: #62 against #65. 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 Medium 3.5 cheaper than UI Mate 27B?

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 Medium 3.5 or UI Mate 27B?

Both publish a 262K-token context window.

Which is better for coding, Mistral Medium 3.5 or UI Mate 27B?

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 Medium 3.5 and UI Mate 27B open-weight models?

Mistral Medium 3.5: API only. UI Mate 27B: 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 Medium 3.5 and UI Mate 27B?

ModelCap currently lists 1 API provider for Mistral Medium 3.5 and 0 for UI Mate 27B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Mistral Medium 3.5 vs UI Mate 27B comparison?

Every figure comes from the sealed ModelCap dataset published 19 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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