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Head-to-head comparison

Kimi K3 vs Nex N2.5 Max

Kimi K3 (Moonshot AI) and Nex N2.5 Max (Nex AGI) 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 9 September 2026

As of 9 September 2026, Kimi K3 holds the stronger ModelCap Index position (#6 vs #13); and Nex N2.5 Max ships open weights.

Which should you choose?

Choose Kimi K3 if…

  • you want the stronger overall ModelCap Index position — #6 against #13 (82.6 vs 77.8 points).
  • you want provider choice — 16 listed API providers against 0.

Choose Nex N2.5 Max if…

  • you want to self-host: Nex N2.5 Max ships open weights while Kimi K3 is restricted license.
  • you want the more recently listed model — Nex N2.5 Max was listed 7 September 2026, Kimi K3 16 July 2026.

Kimi K3 vs Nex N2.5 Max: specs, pricing and context

Specification comparison of Kimi K3 and Nex N2.5 Max
FieldKimi K3Moonshot AINex N2.5 MaxNex AGI
ModelCap Index position#6#13
Index score82.677.8
EvidenceMeasuredEstimated
Input price / 1M tokens$3.00Unlisted
Output price / 1M tokens$15.00Unlisted
Context window1M tokens— tokens
Max output tokens944K—
API providers listed160
Weight accessRestricted licenseOpen weights
Input modalitiesText, Image, VideoText
First listed16 July 20267 September 2026
PublisherMoonshot AINex AGI

Evidence: 6 public benchmark observations across 6 boards · global-corpus-prior over 182 held-out anchors (7%); launch card against 5 resolved peers on 5 rows (93%); optimism haircut 0 from cross-lab-probe; shrunk 1.8 toward the measured corpus. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Kimi K3 vs Nex N2.5 Max

Public benchmark boards where Kimi K3 or Nex N2.5 Max has a published result
BoardKimi K3Nex N2.5 MaxLeads
Arena codingArena (LMArena)15421533–1551Max—Only one result
LMArena AgentLMArena6.6%5.9%–7.3%Max—Only one result
ARC-AGI-2ARC Prize Foundation60.4%Max—Only one result
AA Intelligence IndexArtificial Analysis43.8intelligence-index:v4.3:max—Only one result
AA Terminal-Bench 2.1Artificial Analysis85.0%terminal-bench:2.1:terminus-2:e2b:pass-at-1:3-repeats:source-model="Kimi K3 (max)":reasoning=true—Only one result
AA Humanity's Last ExamArtificial Analysis46.9%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Kimi K3 (max)":reasoning=true—Only one result
WildClawBench OpenClawWildClawBench54.5—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.

Kimi K3 vs Nex N2.5 Max: common questions

Is Kimi K3 better than Nex N2.5 Max?

Kimi K3 ranks higher on the ModelCap Index as of 9 September 2026: #6 against #13. 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 Kimi K3 cheaper than Nex N2.5 Max?

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, Kimi K3 or Nex N2.5 Max?

Both publish a 1M-token context window.

Which is better for coding, Kimi K3 or Nex N2.5 Max?

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 Kimi K3 and Nex N2.5 Max open-weight models?

Kimi K3: Restricted license. Nex N2.5 Max: 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 Kimi K3 and Nex N2.5 Max?

ModelCap currently lists 16 API providers for Kimi K3 and 0 for Nex N2.5 Max, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Kimi K3 vs Nex N2.5 Max comparison?

Every figure comes from the sealed ModelCap dataset published 9 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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