Inference
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Moonshot AI

Kimi K2 0905

Kimi K2 0905 is a model from Moonshot AI. It has 2 scored results in 2 categories. It has no index.

  • Open weights
  • Input: text
  • Released 2025-09
UnrankedEnough results for an index.
IndexAll categories, out of 100.UnrankedMedian 51.0
CoverageIndex weight that has results.40%
SpeedOutput tokens per second.34/sMedian 67/s
First tokenSeconds to the first output token.0.9 sMedian 1.3 s
Input / 1MUS dollars per 1M input tokens.$0.60Median $0.60
Output / 1MUS dollars per 1M output tokens.$2.50Median $2.55
ContextMaximum tokens in one request.262KMedian 262K
EloLMArena rating and rank.—Median 1422

Details

From OpenRouter
API IDThe model ID on OpenRouter.
moonshotai/kimi-k2-0905
Max outputMaximum output tokens per request.
98K
Knowledge cutoffLast date of training data.
31 Dec 2024
ToolsTool calls on OpenRouter.
Yes
JSON outputOutput follows a given JSON schema.
Yes
Cache read / 1MUS dollars per 1M cached tokens.
—
WeightsLink to the published weights.
Hugging Face (opens in a new tab) ↗
RetiresDate OpenRouter removes the model.
—

Where to run

APIs that serve this model.
3 providers
ProviderTypeMaker, cloud, host or router.InputOutputContext
IO.NETHost$0.57$2.3033K
Novita AIHost$0.60$2.50262K
OpenRouterRouter$0.60$2.50262K

US dollars per 1M tokens, list price. From models.dev (opens in a new tab) (MIT).

Capabilities

Index per category, out of 100.
Out of 100
AgenticMulti-step tasks with tools.1 counted45.4—
CodingCode writing and repair.1 counted53.7—
ReasoningLogic problems and puzzles.None counted——
MultimodalTasks with images and text.None counted——
KnowledgeFacts and expert knowledge.None counted——
MultilingualTasks in many languages.None counted——
InstructionTasks with strict prompt rules.None counted——
MathMath problems.None counted——

Results

2 counted
BenchmarkThe benchmark name.ResultThe score from the source.PlacePlace among results on this benchmark.
SWE-bench Verified · SWE-bench/experimentsCoding71.2%12 / 65
Terminal-Bench 1.0Agentic37.5% ±5.427 / 47

Sources

BenchLMCC BY-NC 4.0OpenRouterTerms restrict reuseSWE-bench teamNo licence statedVals AINo licence statedmodels.devMIT

History

5 releases
Output / 1M$2.50 → $2.50
23 Oct 202612 Nov 2026

Questions

How much does Kimi K2 0905 cost?
$0.60 per 1M input tokens, $2.50 per 1M output tokens.
How fast is Kimi K2 0905?
34 output tokens per second, 0.9 s to the first token.
What is the context window of Kimi K2 0905?
262K tokens.
Is Kimi K2 0905 open source?
Yes. Its weights are published.
When was Kimi K2 0905 released?
September 2025.

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