AI Recommendation
Should you use Kimi K2.5?
Kimi K2.5 is listed for chat workloads and supports a 262K context window.
Use it when OpenCode Zen's free tier is enough for evaluation, demos, or light production traffic.
Kimi K2.5 Free API on OpenCode Zen
Free API VerifiedEarlier Kimi frontier model for long-context agents, coding, and multimodal work
Free APIOpenAI compatibleReasoningTool callingJSON modeVisionReasoning
API Details
Copy-ready connection details
Base URL
https://opencode.ai/zen/v1 Model ID
kimi-k2.5 API format OpenAI Chat Completions
Technical Details
Kimi K2.5 specifications
Context window 262K
Max output 262K
Status Online
Family kimi-k2
Knowledge cutoff 2025-01
Released Jan 1, 2026
Last updated Jan 1, 2026
Free listing since Sep 19, 2026
Input text, image, video
Output text
Capabilities reasoning, tool calling, structured output, file attachments
Open weights Yes
Weights Hugging Face
External benchmark references
| Benchmark | Score | Metric | Date |
|---|---|---|---|
| SWE-Bench Verified | 70.8 | resolved | Not listed |
| SWE-Atlas Codebase QnA | 13.1 | score | Not listed |
| SWE-Atlas Refactoring | 20.95 | score | Not listed |
| SWE-Atlas Test Writing | 25.77 | score | Not listed |
Best for
- Chat
Benchmark Overview
Benchmark signals for Kimi K2.5
Intelligence General reasoning and instruction following
23.5/100 Coding Programming and code generation
46.8/100 Context Maximum listed context window
262K Pricing
Kimi K2.5 pricing per 1M tokens
Input $0.6 per 1M tokens
Output $2.75 per 1M tokens
Access Available OpenCode Zen
Availability
Kimi K2.5 availability by provider
We only found this Kimi K2.5 listing on OpenCode Zen in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | Kimi K2.5 | Free tier | 262K | Native | Varies |
Compare
Kimi K2.5 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| big-pickle | OpenCode Zen | N/A | Free tier |
| DeepSeek V4 Flash | OpenCode Zen | 1.0M | Check provider |
| MiMo-V2.5 | OpenCode Zen | 1.0M | Free tier |
| Nemotron 3 Ultra 550B A55B | OpenCode Zen | 1.0M | Free tier |
| North Mini Code | OpenCode Zen | 256K | Check provider |
Typical Use Cases
Kimi K2.5 use cases
Chat
Kimi K2.5 is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
Kimi K2.5 free API FAQ
Is Kimi K2.5 free to use?
Kimi K2.5 is listed with free API access on OpenCode Zen, subject to the provider's quota and account policy.
What is the Kimi K2.5 model ID?
The model ID shown in this catalog is kimi-k2.5.
What context window does Kimi K2.5 support?
The listed context window is 262K tokens with up to 262K output tokens.
More about Kimi K2.5
Free Kimi K2.5 API.
For API keys, setup steps, and provider-level limits, see the OpenCode Zen provider page.