AI Tools Review

MoonshotAI: Kimi K2 0905

By Moonshotai

Released: 2025-09-04

API
LLM
RAG
Moonshotai
Paid
New

Moonshotai Kimi K2 0905 features MoE architecture and 262k-token context window. Kimi K2 0905 is the September update of [Kimi K2 0711](moonshotai/kimi-k2). 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. Kimi K2 is optimised for agentic capabilities, including advanced tool use, reasoning, and code synthesis. It excels across coding (LiveCodeBench, SWE-bench), reasoning (ZebraLogic, GPQA), and tool-use (Tau2, AceBench) benchmarks. The model is trained with a novel stack incorporating the MuonClip optimizer for stable large-scale MoE training. Available at $0.39/1M tokens.

Visit MoonshotAI: Kimi K2 0905

AI-Powered

Leverages advanced AI technology to deliver cutting-edge capabilities and results.

Fast & Efficient

Optimized performance ensures quick results without compromising on quality.

Purpose-Built

Specifically designed for llms tasks and workflows.

Moonshotai Model Timeline

MoonshotAI: Kimi K2 Thinking

262k tokens context

MoonshotAI: Kimi K2 0905Current

262k tokens context

MoonshotAI: Kimi K2 0905 (exacto)

262k tokens context

MoonshotAI: Kimi K2 0711 (free)

33k tokens context

MoonshotAI: Kimi K2 0711

131k tokens context

MoonshotAI: Kimi Dev 72B

131k tokens context

Specifications

pricing$0.39 / $1.90 (per 1M)
context Window262k tokens

AI Evaluation

4.8
Expert Rating
Text4.9/5
Coding3.5/5

Optimized for programming tasks, this model excels at code generation, debugging, and software engineering workflows with solid benchmark performance.

Pros

  • 262k token context window
  • Strong code generation and debugging
  • Advanced logical reasoning
  • Agent-ready with tool use

Cons

  • May lack creative flair
  • API integration required