Kimi K2 Instruct 0905

Kimi K2 0905 is the September update of Kimi K2 0711.

Context
262K
Max output
98K
Input price
$0.6/1M tokens
Output price
$2.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming

Details

Model IDmoonshotai/kimi-k2-0905
Provider Novita AI
Creator Moonshot AI (Kimi)
Familykimi-k2
License—
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window262K tokens
Max input—
Max output98K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

Chat CompletionsPOST
Generate chat responses with messageshttps://api.novita.ai/v3/openai/v1/chat/completions

Pricing

Input
$0.6
Output
$2.5
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: kimi-k2

ModelContextMax outPricing
Kimi K2 Instruct131K98K$0.57$2.3
Kimi K2 Instruct 0905262K98K$0.6$2.5
Kimi K2 Thinking262K98K$0.6$2.5

API

GET/v1/models/novita/moonshotai/kimi-k2-0905

Kimi K2 Instruct 0905

moonshotai/kimi-k2-0905

Kimi K2 0905 is the September update of Kimi K2 0711.

Changes · 5 entries
moonshotai/kimi-k2-0905createca7a400Nov 2, 2026, 03:02 AM
moonshotai/kimi-k2-0905update20b7699Sep 14, 2026, 06:48 AM
max_output_tokens100352→98304
moonshotai/kimi-k2-0905update639b255Sep 1, 2026, 11:11 AM
nameKimi K2 0905→Kimi K2 Instruct 0905
moonshotai/kimi-k2-0905update88d97e5Jun 30, 2026, 04:49 AM
max_output_tokens262144→100352
moonshotai/kimi-k2-0905create08f0ffeMay 11, 2026, 08:27 AM