Moonshot AI

Kimi K2 Instruct

Kimi K2 Instruct is a proprietary model from Moonshot AI. Its best result is #56 of 96 on AIME with 62.71%.

Developer
Moonshot AI
Released
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Context window
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Price in / out, per 1M tokens
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Weights
Proprietary
Inputs
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Reasoning
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Tool use
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Benchmarks

BenchmarkScore barAccuracyRankCost / test
LiveCodeBenchCoding70.45%88 / 143$1 / $3
MedQAMedicine83.97%60 / 92$1 / $3
GPQA DiamondReasoning71.46%93 / 138$1 / $3
MMLU-ProReasoning79.39%99 / 138$1 / $3
AIMEReasoning62.71%56 / 96$1 / $3

Vals AI, as of Oct 24, 2026.

Compare Kimi K2 Instruct

Moonshot AI

The lab behind Kimi, known for long-context and agentic open-weight models. Founded 2023, based in Beijing. moonshot.ai

Questions

Who makes Kimi K2 Instruct?

Kimi K2 Instruct is made by Moonshot AI, founded 2023 and based in Beijing.

Is Kimi K2 Instruct open source?

No. Kimi K2 Instruct is proprietary and served through its provider’s API.

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.