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ModelCap

Kimi K2.5

Arena #80Official publisher releaseRestricted license

Moonshot AI·#82 of 504 in the all-versions archive

Kimi K2.5 is a language model from Moonshot AI. It ranks #82 of 504 in ModelCap's all-versions archive, with an Index score of 71.6, measured on 3 public benchmarks. Its score range of 66.9–76.3 spans positions #50–#103. It is listed at $0.50 per million input tokens and $2.50 per million output tokens across 5 providers. It reads up to 262K tokens of context, and its weights are downloadable under a use-restricted licence.

Figures as of 6 Nov 2026, 13:52 UTC · download the public dataset · methodology

ModelCap Index · All-versions archive
71.6#82
Measured on 3 public benchmarks · range 66.9–76.3
Evidence as of 4 Nov 2026, 23:07 UTC
Market Gravity
42.9Decreased by 0.1
Secondary market signal

Superseded by Kimi K3. It no longer holds a current-board position; its all-versions archive rank is #82.

Input
$0.50
per 1M tokens
Output
$2.50
per 1M tokens
Context
262K
tokens
Providers
5
endpoints

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
AtlasCloudint4Cheapest$0.49$2.50262Kint4—
SiliconFlowint4$0.50$2.50262Kint4100.0%
Novita$0.57$2.85262K—100.0%
Amazon Bedrockus-east-2$0.60$3.00262K——
Venice$0.532$3.32256K—100.0%

Hugging Face Inference Providers

Exact repository identity

Provider economics and telemetry published by the Hugging Face Router. These are operational signals, not benchmark results.

ProviderInputOutputContextTTFTThroughputFeatures
deepinfra
live
$0.45$2.25262K1092 ms13.4 tok/stools · structured
novita
live
$0.60$3.00262K828 ms45.2 tok/stools · structured
featherless-ai
live
——————

Reasoning efforts

Best supported result can inform ModelCap

Published Max, X-High, High and other configurations for this model. These are sourced scores, not head-to-head essays.

Related community configurations

Human preference rating
ConfigurationRatingSource rankVotesSource
Thinking
Kimi K2.5 (Thinking)
1450
CI 1446–1453
#8075KLMArena
Match 100%

Reported evaluation leads (88)

Not independent measurement

Structured rows reported in this exact model repository at the pinned revision below. They are the publisher talking about itself: never measured evidence, never a score input on their own. They remain quarantined until dataset revision, harness, configuration and identity pass ModelCap’s independent admission review.

Dataset / taskMetricValueRevisionProvenance
cais/hle
hle
—50.2
Unpinned
not published
Reported
Quarantined
cais/hle
default
—24.37
Unpinned
not published
Reported
Quarantined
claw-eval/Claw-Eval
general
—52.8
Unpinned
not published
Reported
Quarantined
claw-eval/Claw-Eval
multimodal
—14.8
Unpinned
not published
Reported
Quarantined
claw-eval/Claw-Eval
multi_turn
—50
Unpinned
not published
Reported
Quarantined
collinear-ai/yc-bench
medium
—408,822
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
overall
—77.5
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
digital
—85
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
photographed
—75
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
latin
—81.6
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
de
—85.9
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
en
—86.2
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
es
—72.7
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
fr
—71
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
id
—80.6
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
it
—86.6
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
nl
—77.4
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
pt
—87.6
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
vi
—86.2
Unpinned
not published
Reported
Quarantined
Delores-Lin/MDPBench
non_latin
—72.9
Unpinned
not published
Reported
Quarantined

Showing 20 of 88 rows.

Other versions (4)

ModelCap Index · All-versions archive

Methodology
71.6
Measured on 3 public benchmarks
All-versions archive
#82 of 504
Score range
66.9–76.3
Rank range
#50–#103
Evidence as of
4 Nov 2026, 23:07 UTC
Benchmarks used
ARC-AGI-2 Verified, Arena Coding, Arena Overall
Technical details
Public rank basis
Measured (measured)
Evidence label
Measured · 3 public benchmark observations across 3 boards
Index support
65.7% · strong
Identity binding
Exact catalogue product · moonshotai/moonshotai/kimi-k2.5 · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata moonshotai/Kimi-K2.5@4d01dfe0332d63057c186e0b262165819efb6611 (not the evaluation revision)
Index observations used
3
Qualified Index evidence point
71.6
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
71.6
Evidence status
confirmed · 87% mass
General preference
72.6
Coding
70.2
Agents & tools
—
Reasoning
27.4
Evidence breadth
95%
Evidence coverage
66%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
16.1
Liquidity (providers × uptime)
99.5
Open reach (HF downloads)
—
Surface (context / tools / modalities)
90.3
Freshness
34.0
  • · OpenRouter popularity #133
  • · 5 live providers
  • · Catalogue: context 262144, reasoning, tools, modalities Text/Image
  • · First seen 2026-01-27

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

BES evidence selected · measured input only

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Deployment readiness

Metadata index
83.8
strong · 89% metadata coverage
Not capability
Artifact reproducibility
85.0
Access & legal clarity
67.5
Deployability
97.8
Evaluation provenance
77.1

Not yet published: the base model it derives from, a link to the licence terms, pinned evaluation dataset versions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
42.9
OpenRouter weekly popularity
#133 of 339

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

Status
Ranked
Source
LMArena
Official rank
#80 of 419
Rating
1449.7
95% confidence interval
1446–1453
Votes
75K
Source published at
28 Oct 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

Market Gravity breakdown

Usage55%
16.1

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
99.5

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
34.0

Time since first public availability, on a six-month half-life.

Specification

Model ID
moonshotai/kimi-k2.5
Context window
262K tokens
Declared output cap
236K tokens

OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata

Inputs
Text, Image
Outputs
Text
Tokenizer
Other
Cached input tokens
$0.15 / 1M
First seen on OpenRouter
27 Jan 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Not supported: Moderated

Weights & access

Restricted license. Downloadable weights use a model-specific or use-restricted license. Review the linked license before use, redistribution, or commercial deployment.

Access
Restricted license
Pinned revision
4d01dfe0332d
Parameters
1026.9B
Architecture
KimiK25ForConditionalGeneration
Model type
kimi_k25
Hugging Face downloads (30d)
394K
Downloads (all time)
16.4M
Likes
3K
Repository updated
30 Apr 2026, 03:56 UTC

Benchmark leaderboards featuring Kimi K2.5

All leaderboards
Public benchmark boards on which Kimi K2.5 has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena text leaderboardArena (LMArena)14501446–1453#80 of 419Thinking28 Oct 2026
Arena coding leaderboardArena (LMArena)15021497–1507#76 of 414Thinking28 Oct 2026
ARC-AGI-2 leaderboardARC Prize Foundation11.8%#162 of 280Default4 Nov 2026
SWE-bench leaderboardSWE-bench (Princeton / SWE-agent team)70.8%#12 of 47High17 Feb 2026
WildClawBench OpenClaw leaderboardWildClawBench30.8#30 of 34Default20 Jul 2026

Kimi K2.5: common questions

How does Kimi K2.5 rank among AI models?

Kimi K2.5 is a superseded version and is not on the current board as of 6 November 2026. Its archive position, where one exists, is shown on the page; the newer version carries the current rank.

How much does Kimi K2.5 cost per 1M tokens?

Kimi K2.5 is listed at $0.50 per 1M input tokens and $2.50 per 1M output tokens as of 6 November 2026 across 5 providers. Prices come from the OpenRouter catalogue and re-observe on every refresh. For 1,000 requests using 2,000 input and 500 output tokens each, the listed rates imply $2.25 total (2M input + 0.5M output). This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the chosen endpoint's rate and limits before budgeting.

What is the context window of Kimi K2.5?

Kimi K2.5 has a published context window of 262K tokens (262,144). The snapshot lists a 235,929 token catalogue-declared route output cap. OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. The providers table lists each endpoint's context limit.

Is Kimi K2.5 open-weight?

Restricted license (modified-mit). Downloadable weights use a model-specific or use-restricted license. Review the linked license before use, redistribution, or commercial deployment. The repository is moonshotai/Kimi-K2.5 on Hugging Face.

Which API providers serve Kimi K2.5?

5 providers serve Kimi K2.5 through OpenRouter as of 6 November 2026: AtlasCloud, SiliconFlow, Venice, Novita and Amazon Bedrock. Each provider's price, context limit, quantization and measured uptime are in the providers table above.

Which benchmarks has Kimi K2.5 been evaluated on?

Kimi K2.5 has published results on 5 public boards tracked by ModelCap as of 6 November 2026: Arena text 1450 (#80 of 419), Arena coding 1502 (#76 of 414), ARC-AGI-2 11.8% (#162 of 280), SWE-bench 70.8% (#12 of 47) and WildClawBench OpenClaw 30.8 (#30 of 34). Each board page ranks every tracked model on that benchmark. The ModelCap Index scores the results its methodology admits, with published uncertainty, and shows reference boards without scoring them.

When was Kimi K2.5 released?

Kimi K2.5 first appeared in the catalogue on 27 Jan 2026. It has since been superseded by Kimi K3. Rank and price movements since then are recorded on the site's changes feed.