kimi-k2-5
Kimi K2.5 is Moonshot AI’s native multimodal model with strong visual coding and a self-directed agent swarm approach. It builds on Kimi K2 with continued pretraining on about 15T mixed tokens.
Pricing: Input 100 credits / 1M tokens (≈ $0.50), Output 500 credits / 1M tokens (≈ $2.50).
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Kimi K2.5 API on ModelFold
Kimi K2.5 is Moonshot AI’s native multimodal model with strong visual coding and a self-directed agent swarm approach. It builds on Kimi K2 with continued pretraining on about 15T mixed tokens. Try Kimi K2.5 in the ModelFold Playground, then call it from your own code through an OpenAI-compatible chat completions API.
What Is the Kimi K2.5 API
Kimi K2.5 at a glance
Kimi K2.5 is a chat model from Moonshot. It accepts text and images as input and returns text, with a context window of up to 262K tokens.
Use it without hosting anything
On ModelFold you call Kimi K2.5 with a single API key — no model weights to download and no inference servers to run. The same key also works for the other chat, image, video and audio models on ModelFold.
Core Capabilities of Kimi K2.5
Up to 262K tokens of context
Keep long conversations, large documents and sizeable code in a single request, so the model can reason over the full material instead of fragments.
Understands images
Besides text, Kimi K2.5 accepts images as input, so a single request can combine instructions with visual or other media.
Function calling
Kimi K2.5 supports tool (function) calling: describe your functions in the request and the model returns structured calls your code can run — the basis for agents and integrations.
Reasoning mode
Kimi K2.5 can produce reasoning before its final answer; in the Playground you can switch reasoning on or off to compare results.
Structured outputs
Ask for JSON that follows a schema (response_format), which makes extraction, classification and system integrations more reliable.
How to Use Kimi K2.5 on ModelFold
- 1
Step 1: Try it in the Playground
Open the Playground at the top of this page, type a prompt and see how Kimi K2.5 responds before writing any code.
- 2
Step 2: Create an API key
Sign in to ModelFold and create an API key in the console. Keep it secret and send it as a Bearer token.
- 3
Step 3: Send a request
Call POST https://modelfold.ai/v1/chat/completions with "model": "kimi-k2-5" and your messages. Existing OpenAI-compatible SDKs work by changing the base URL and key.
- ✓
Step 4: Ship and monitor
Integrate the response into your product and check token usage and spend for every call in the console logs.
What You Can Build with Kimi K2.5
AI coding assistants
Generate, explain, debug and refactor code, review pull requests and work through multi-file changes in developer tools and IDE plugins.
Screenshot and image understanding
Read screenshots, charts, diagrams and photos alongside text — for UI review, visual QA or turning images into structured data.
Autonomous agents
Build agents that plan multi-step tasks, call your tools and APIs, and keep working toward a goal across long sessions.
Long-document workflows
Feed in long reports, contracts, manuals or codebases and ask for summaries, comparisons and answers grounded in the material.
Frequently Asked Questions
What is Kimi K2.5?⌄
Kimi K2.5 is Moonshot AI’s native multimodal model with strong visual coding and a self-directed agent swarm approach. It builds on Kimi K2 with continued pretraining on about 15T mixed tokens.
Which inputs does Kimi K2.5 support?⌄
Kimi K2.5 accepts text and images and returns text. Through ModelFold you can send text and images (OpenAI-style image_url content); in the Playground you can also attach documents, which are converted to text.
How long is the context window of Kimi K2.5?⌄
Up to 262K tokens, shared between your input and the model’s output.
Does Kimi K2.5 support function calling?⌄
Yes. Kimi K2.5 supports tools / function calling through the standard tools parameter of the chat completions API.
How is Kimi K2.5 billed on ModelFold?⌄
Pay as you go by tokens: input and output tokens are charged at the per-million-token prices shown on this page. There is no monthly fee, and failed requests are not charged.
How do I call Kimi K2.5 through the API?⌄
Send a POST request to https://modelfold.ai/v1/chat/completions with "model": "kimi-k2-5", using your ModelFold API key as the Bearer token.
| Input | 100 credits 1M tokens≈ $0.50 |
| Output | 500 credits 1M tokens≈ $2.50 |
Billed per token: input and output are priced separately, and thinking tokens count as output. The Playground charges exactly the same way.
Read API docs →AI Agents · Claude Code / Cursor / Trae →curl https://modelfold.ai/v1/chat/completions \
-H "Authorization: Bearer $MODELFOLD_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"kimi-k2-5","messages":[{"role":"user","content":"Hello"}]}'