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Aman Sanger(@amanrsanger)

We've evaluated a lot of base models on perplexity-based evals and Kimi k2.5 proved to be the strong...

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We've evaluated a lot of base models on perplexity-based evals and Kimi k2.5 proved to be the strong...
AI 深度提炼
  • Kimi k2.5在多项基础模型评估中表现最优
  • Composer-2结合了CPT、高算力RL和Fireworks推理采样技术
  • 团队承认此前博客未提及Kimi基础模型是疏漏
#大模型#Kimi#Composer-2#强化学习#Moonshot AI
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After that, we do continued pre-training and high-compute RL (a 4x scale-up).

The combination of the strong base, CPT and RL, and Fireworks' inference and RL samplers make" / X

Aman Sanger on X: "We've evaluated a lot of base models on perplexity-based evals and Kimi k2.5 proved to be the strongest! After that, we do continued pre-training and high-compute RL (a 4x scale-up). The combination of the strong base, CPT and RL, and Fireworks' inference and RL samplers make" / X

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Aman Sanger ![Image 3](http://x.com/amanrsanger)

@amanrsanger

We've evaluated a lot of base models on perplexity-based evals and Kimi k2.5 proved to be the strongest! After that, we do continued pre-training and high-compute RL (a 4x scale-up). The combination of the strong base, CPT and RL, and Fireworks' inference and RL samplers make Composer-2 frontier level. It was a miss to not mention the Kimi base in our blog from the start. We'll fix that for the next model.

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Kimi.ai

@Kimi_Moonshot

·

Mar 20

Congrats to the @cursor_ai team on the launch of Composer 2! We are proud to see Kimi-k2.5 provide the foundation. Seeing our model integrated effectively through Cursor's continued pretraining & high-compute RL training is the open model ecosystem we love to support.

7:41 PM · Mar 20, 2026

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