Kimi K2 0905

Overview

Overview

Kimi K2 0905 is the September update of Kimi K2 0711. It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32 billion active per forward pass. It supports long-context inference up to 256k tokens, extended from the previous 128k. This update improves agentic coding with higher accuracy and better generalization across scaffolds, and enhances frontend coding with more aesthetic and functional outputs for web, 3D, and related tasks. The model is trained with a novel stack incorporating the MuonClip optimizer for stable large-scale MoE training.

Kimi K2 0905 was released on September 5, 2025. API access is available through Novita.

Benchmarks

Benchmarks

Kimi K2 0905 Performance Across Datasets

Scores sourced from the model's scorecard, paper, or official blog posts

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llm-stats.com - Sat Feb 21 2026

Pricing

Pricing

Pricing, performance, and capabilities for Kimi K2 0905 across different providers:

Provider	Input ($/M)	Output ($/M)	Max Input	Max Output	Latency (s)	Throughput	Quantization	Input	Output
Novitafp8	$0.60	$2.50	262.1K	262.1K	—	—	fp8	Text Image Audio Video	Text Image Audio Video

API Access