KimiPaid accountsKimi K3 Agent
Kimi K3 Agent is Moonshot AI's Kimi K3 multimodal reasoning model served through Kimi's agent gateway, with a 256K-token context window, native tool calling and adjustable reasoning effort for coding and agentic work.
Model ID
moonshotai/kimi-k3-agent- Context window
- 262K
- tokens
- Max output
- 66K
- tokens
- Input
- $3
- per 1M tokens
- Output
- $15
- per 1M tokens
Cache read $0.3
Quickstart
Call Kimi K3 Agent in one request.
Point the SDK you already use at xKiro and pass the model ID. The same key works for every model in the catalog.
SDK guidesimport osfrom openai import OpenAI client = OpenAI( api_key=os.environ["XKIRO_API_KEY"], base_url="https://api.xkiro.com/v1",) res = client.chat.completions.create( model="", messages=[ {"role": "user", "content": "Explain HTTP caching in two sentences."}, ],) print(res.choices[0].message.content)✓ 200 OK
"model": "moonshotai/kimi-k3-agent"
HTTP caching stores copies of responses so later requests can be served without contacting the origin server. Headers such as Cache-Control and ETag decide how long a copy stays fresh and how it is revalidated.
14 input · 42 output tokens · $0.00067 at this model’s rates
Create an API key in the dashboard and export it as XKIRO_API_KEY.
Pricing
What Kimi K3 Agent costs.
Billed per million tokens at these rates, from your plan’s budget or your wallet.
$3
Input
per 1M tokens
$15
Output
per 1M tokens
$0.3
Cache read
per 1M tokens
Requires an account that has paid — subscribe to a plan or top up your wallet.
On a plan
From $0.1 / $0.5 on a plan
Plan: up to −96%
Usage on a plan comes out of your allowance, so Kimi K3 Agent costs from $0.1 / $0.5 per 1M tokens when you use the whole allowance — up to 96% less than pay-as-you-go.
Compare plans →Billed fairly
- Requests that fail with a 5xx error are never billed
- Retrying an identical blocking request replays the first result — no double charge
- Cancel a stream and pay only for the tokens generated
Specifications
Limits and capabilities.
- Context window
- 262,144 tokens
- Max output
- 65,536 tokens
- Input
- Text · Image
- Output
- Text
- Provider
- Kimi
- Model ID
- moonshotai/kimi-k3-agent
- Good for
- Coding · Long context
Capabilities
- Tool useSupported
- VisionSupported
- Video inputNot supported
- ReasoningSupported
Reasoning effort
- none
- low
- medium
- high
- max
Set it with reasoning_effort in the OpenAI format, or thinking in the Anthropic format.
Supported parameters
- max_tokens
- temperature
- top_p
- stop
- frequency_penalty
- presence_penalty
- seed
- stream
- tools
- tool_choice
- response_format
- structured_outputs
- reasoning
- include_reasoning
Compare
Similar models.
Closest in price and context window — same provider first, then alternatives from other providers.
Browse all 69 models| Model | Input / 1M | Output / 1M | ||
|---|---|---|---|---|
| Kimi K3 AgentThis modelPaid accountsVision · Reasoning · Tool use | 262K | $3 | $15 | $0.3 |
| Kimi K2.8 Preview AgentPaid accountsVision · Reasoning · Tool use | 262K | $1 | $4 | $0.16 |
 Opus 4.5Vision · Reasoning · Tool use | 200K | $5 | $25 | $0.5 |
 Grok 4.5Vision · Reasoning · Tool use | 500K | $2 | $6 | $0.3 |
| Grok 4.6Paid accountsVision · Reasoning · Tool use | 500K | $2 | $6 | $0.5 |
| Grok 4.7Vision · Reasoning · Tool use | 500K | $2 | $6 | $0.5 |
| Sonnet 4Vision · Reasoning · Tool use | 1M | $3 | $15 | $0.3 |
Start building with Kimi K3 Agent.
Create a key, point your SDK at xKiro and call moonshotai/kimi-k3-agent.
No credit card · Cancel anytime · 26 free models, free forever