LLM Reference

Kimi K2 Instruct

Released
2025-09-05
Last refreshed
2026-06-29
Status
Researched 46d ago
Open sourceCommercial use: permittedRAGLong contextClassificationJSON / Tool use

Kimi K2 Instruct is worth evaluating for rag, long context, and classification when its provider route and context window match the workload.

Use it for

  • Teams evaluating rag, long context, and classification
  • Workloads that can use a 131k context window
  • Buyers comparing 4 tracked provider routes

Do not use it for

  • Vision or document-understanding workloads
Specifications
Family
Kimi K2
Released
2025-09-05
Context
131k
Parameters
1T total, 32B active (MoE)
Architecture
Decoder Only
Specialization
general
Openness
Open source
License
MITOSI-approvedCommercial use: permitted
Weights
Unknown
Code
Unknown
Training
Fine-tuned
Created by

Lossless long-context AI innovation

Beijing, China
Founded 2023
Website
Pricing
Output / 1M
$2.30
Input / 1M
$0.570

Cheapest of 5 routes · Novita AI

About

Kimi K2 Instruct is an instruction-tuned language model from Moonshot AI, available via Fireworks AI.

Kimi K2 Instruct is an open-source model in the Kimi K2 family. The structured metadata tracks reasoning and structured outputs. This page tracks provider routes through Fireworks AI, Together AI, NVIDIA NIM, and 2 more, with the cheapest tracked route listed at $0.57 input and $2.3 output per 1M tokens. No headline benchmark score is tracked for Kimi K2 Instruct yet.

Top use-case fit

RAG

Included by capability and metadata signals in the decision map.

Long context

Included by capability and metadata signals in the decision map.

Classification

Included by capability and metadata signals in the decision map.

Capabilities

ReasoningStructured Outputs

Benchmark peer barsfor RAG

No task-mapped benchmark peers are available for this model yet.

Migration checks

No linked migration route is available for this model yet.

Compare Kimi K2 Instruct with other models

Show all 19 popular comparisonssorted by 7-day search impressions

Frequently asked questions

What is the context window of Kimi K2 Instruct?

Kimi K2 Instruct has a context window of 131k tokens.

How much does Kimi K2 Instruct cost?

Kimi K2 Instruct pricing ranges from $0.57/1M to $1.20/1M input tokens depending on the provider.

When was Kimi K2 Instruct released?

Kimi K2 Instruct was released on 2025-09-05.

Which providers offer Kimi K2 Instruct?

Kimi K2 Instruct is available from 5 providers: Fireworks AI, Together AI, NVIDIA NIM, Vercel AI Gateway, Novita AI.