Models

Auto vs Kimi K3

Output tokens cost $2.00 per million on Auto and $15.00 per million on Kimi K3. Input tokens cost $2.00 per million on Auto and $3.00 per million on Kimi K3. Cached input tokens are billed at $2.00 per million on Auto and $0.30 per million on Kimi K3. Context lengths are 1,000,000 tokens on Auto and 1,048,576 tokens on Kimi K3.

OpenAIAutoMoonshot AIKimi K3
OpenAI logo
Auto
OpenAI · text, audio, image, video → text

AIHubMix Smart Router: Fill in the model name as auto, and the gateway will automatically select the optimal model based on the request content; The auto without a suffix uses the default strategy cost_optimized. You can explicitly specify the focus using auto:<strategy>, such as auto (= auto:cost_optimized) cost priority: choose the cheapest as long as the capability meets the standard; auto:balanced balanced: considers capability / cost / latency auto:quality_first quality priority: prioritize selecting the strongest capability for complex reasoning and critical outputs auto:latency_critical low latency priority: prioritize selecting the fastest response

Input$2.00 /M
Output$2.00 /M
Moonshot AI logo
Kimi K3
Moonshot AI · text, image, video → text

Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.

Input$3.00 /M
Output$15.00 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Auto
Kimi K3
Input /M
$2.00
$3.00
Output /M
$2.00
$15.00
Cache read /M
$2.00
$0.30
Context length
1,000,000
1,048,576
Max output
0
1,048,576
Time to First Token
-
0.9 s
Throughput
-
73.1 tok/s
Modalities
textaudioimagevideo
textimagevideo
Supported Parameters
thinkingwebdeepsearchtoolsfunction callingstructured outputslong context
thinkingfunction callingstructured outputs
API Formats
Released
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-

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

autokimi-k3

Tokens / day

-

Requests / day

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Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

autokimi-k3

Throughput (tok/s)

-

TTFT (s)

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Uptime (%)

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Cost calculator

Estimate your monthly bill for the same workload on each model.

Auto
$150 /mo
Kimi K3
$405 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Auto, Kimi K3?

Auto: $2.00/M output tokens; Kimi K3: $15.00/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

Auto accepts 1,000,000 and Kimi K3 accepts 1,048,576 input tokens.

What inputs and capabilities does each model support?

Auto accepts text, audio, image and video input and supports thinking, web search, deep search, tool calling, function calling, structured outputs and long context; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.

Can I call Auto and Kimi K3 with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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