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Head-to-head comparison

Mistral Medium 3.5 vs Kimi K2.7 Code

Mistral Medium 3.5 (Mistral AI) and Kimi K2.7 Code (Moonshot AI) 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 15 September 2026

As of 15 September 2026, Kimi K2.7 Code holds the stronger ModelCap Index position (#55 vs #63); and Kimi K2.7 Code is 2.1× cheaper per output token ($3.50/1M vs $7.50/1M).

Which should you choose?

Choose Mistral Medium 3.5 if…

  • AA τ²-Bench Telecom is your yardstick — 94.2% against 90.1%.

Choose Kimi K2.7 Code if…

  • you want the stronger overall ModelCap Index position — #55 against #63 (58.5 vs 55.9 points).
  • API cost matters — $3.50/1M output tokens against $7.50/1M, about 2.1× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.71/1M against $1.50/1M.
  • you want provider choice — 14 listed API providers against 1.
  • AA Intelligence Index is your yardstick — 26.3 against 14.9.
  • AA Humanity's Last Exam is your yardstick — 35.0% against 13.8%.
  • you want the more recently listed model — Kimi K2.7 Code was listed 12 June 2026, Mistral Medium 3.5 30 April 2026.

Mistral Medium 3.5 vs Kimi K2.7 Code: specs, pricing and context

Specification comparison of Mistral Medium 3.5 and Kimi K2.7 Code
FieldMistral Medium 3.5Mistral AIKimi K2.7 CodeMoonshot AI
ModelCap Index position#63#55
Index score55.958.5
EvidenceMeasuredMeasured
Input price / 1M tokens$1.50$0.71
Output price / 1M tokens$7.50$3.50
Context window262K tokens262K tokens
Max output tokens210K236K
API providers listed114
Weight accessAPI onlyRestricted license
Input modalitiesText, Image, FileText, Image
First listed30 April 202612 June 2026
PublisherMistral AIMoonshot AI

Evidence: 4 public benchmark observations across 4 boards · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Mistral Medium 3.5 vs Kimi K2.7 Code

Public benchmark boards where Mistral Medium 3.5 or Kimi K2.7 Code has a published result
BoardMistral Medium 3.5Kimi K2.7 CodeLeads
Arena codingArena (LMArena)14791468–1490—Only one result
LMArena AgentLMArena-10.3%-11.7%–-8.8%—Only one result
AA Intelligence IndexArtificial Analysis14.9intelligence-index:v4.3:reasoning-unspecified26.3intelligence-index:v4.3:reasoning-unspecifiedKimi K2.7 Code
AA τ²-Bench TelecomArtificial Analysis94.2%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Mistral Medium 3.5":reasoning=true90.1%tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Kimi K2.7 Code":reasoning=trueMistral Medium 3.5
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=true35.0%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Kimi K2.7 Code":reasoning=trueKimi K2.7 Code
WildClawBench OpenClawWildClawBench—46.9Only 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 Kimi K2.7 Code: common questions

Is Mistral Medium 3.5 better than Kimi K2.7 Code?

Kimi K2.7 Code ranks higher on the ModelCap Index as of 15 September 2026: #55 against #63. 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 Kimi K2.7 Code?

Kimi K2.7 Code is cheaper on output tokens: $3.50/1M against $7.50/1M. Input tokens are $1.50/1M for Mistral Medium 3.5 and $0.71/1M for Kimi K2.7 Code. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $6.75 for Mistral Medium 3.5 versus $3.17 for Kimi K2.7 Code. Kimi K2.7 Code costs 53.0% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.

Which has the bigger context window, Mistral Medium 3.5 or Kimi K2.7 Code?

Both publish a 262K-token context window.

Which is better for coding, Mistral Medium 3.5 or Kimi K2.7 Code?

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 Kimi K2.7 Code open-weight models?

Mistral Medium 3.5: API only. Kimi K2.7 Code: Restricted license. 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 Kimi K2.7 Code?

ModelCap currently lists 1 API provider for Mistral Medium 3.5 and 14 for Kimi K2.7 Code, 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 Kimi K2.7 Code comparison?

Every figure comes from the sealed ModelCap dataset published 15 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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