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TL;DR - Kimi K2.5
- Open-source 1T-parameter multimodal AI model by Moonshot AI — activates 32B per request via MoE
- Agent Swarm coordinates up to 100 agents in parallel for 4.5x faster execution
- Outperforms GPT-5 on SWE-Bench — available as API, chat, and open weights on Hugging Face
Pricing: Free plan available
Best for: Growing teams
Pros & Cons
Pros
- Outperforms GPT-5 and Gemini 3 Pro on SWE-Bench coding benchmarks
- Agent Swarm reduces execution time by 4.5x at 76% lower cost
- Open-source weights enable self-hosting and customization
- Efficient MoE architecture activates only 32B of 1T parameters per request
Cons
- Self-hosting requires significant GPU infrastructure for the full model
- Agent Swarm complexity may be overkill for simple tasks
- Newer model with less ecosystem support compared to GPT or Claude
Key Features
Mixture-of-Experts: 1T total parameters, 32B active per requestMultimodal understanding of text, code, and visual contentAgent Swarm coordinates up to 100 specialized agents in parallelOpen-source weights available on Hugging FaceInstant and thinking modes for different reasoning depthsAPI access and chat interface via Moonshot platform
Pricing Plans
Free (Chat)
Free
- Web chat interface
- Basic usage limits
- Instant and thinking modes
API
- Pay-per-token pricing
- Agent Swarm capabilities
- Multimodal inputs
- Production-grade access
Open Source
Free
- Full model weights on Hugging Face
- Self-hosting on own infrastructure
- Apache 2.0 license
About Kimi K2.5
By Toolradar Team·
Kimi K2.5 is an open-source multimodal AI model by Moonshot AI with 1 trillion total parameters that activates 32 billion per request via Mixture-of-Experts architecture. It handles text, code, and visual content with agentic capabilities and an Agent Swarm feature that coordinates up to 100 specialized agents in parallel, cutting execution time by 4.5x. Outperforms GPT-5 and Gemini 3 Pro on SWE-Bench coding benchmarks. Available as a chat interface, API, and open weights on Hugging Face.
How we evaluate tools →Source: kimi.com
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Kimi K2.5 FAQ
What is Kimi K2.5?
Kimi K2.5 is an open-source multimodal AI model by Moonshot AI with 1 trillion parameters (32 billion active per request). It handles text, code, and images with an Agent Swarm feature that coordinates up to 100 agents in parallel.
Is Kimi K2.5 open source?
Yes. Kimi K2.5 model weights are available on Hugging Face for self-hosting. You can also access it through Moonshot's API or web chat interface without downloading the model.
What is Agent Swarm?
Agent Swarm is Kimi K2.5's feature that coordinates up to 100 specialized AI agents working simultaneously on a task. It achieves 4.5x faster execution at 76% lower cost compared to single-agent approaches.
Source: kimi.com