Kimi
Moonshot AILarge Language ModelProprietaryLEGACY — the moonshot-v1 series and Kimi K2.5 were retired from the API on August 31, 2026 (requests now return 404); migrate to Kimi K3. Was known for one of the longest context windows available and strong long-document understanding.
Abilities
Use Cases
Available in Tools
Availability
How to Use
Pros
- 2M token context window — one of the longest available for processing massive documents
- Strong performance on Chinese and English language tasks
- Free web access with generous usage limits
- OpenAI-compatible API — easy integration for existing projects
- Vision capabilities — can process images alongside text
Cons
- Less well-known outside Asia — smaller global community
- API documentation primarily in Chinese
- Closed source — no self-hosting option
- Data processing may be subject to Chinese regulations
- Quality can be inconsistent on non-Chinese/English languages
What to Use It For
Perfect For
2M context window handles entire books, legal corpora, and massive codebases in a single prompt
Native Chinese training gives it an edge over Western models for Chinese text processing
Good For
Massive context allows processing multiple papers or chapters at once
Strong in both languages with good translation capabilities
Not Recommended
Training focused on Chinese and English — European languages are secondary
Try instead: Mistral Large
Data residency and regulatory concerns for Western enterprise use
Try instead: GPT-4.1, Claude Opus 5
Do Not Use For
Closed source with no available weights
Try instead: Llama 4 Maverick
LLM only — cannot generate images
Try instead: FLUX.1