Models

Doubao Seed 1.6 Thinking vs Kimi K3

Compare Doubao Seed 1.6 Thinking from ByteDance and Kimi K3 from Moonshot AI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

ByteDanceDoubao Seed 1.6 ThinkingMoonshot AIKimi K3
ByteDance logo
Doubao Seed 1.6 Thinking
ByteDance · text, image, video → text

The Doubao-Seed-1.6-thinking model has significantly enhanced reasoning capabilities. Compared with Doubao-1.5-thinking-pro, it has further improvements in fundamental abilities such as coding, mathematics, and logical reasoning, and now also supports visual understanding. It supports a 256k context window, with output length supporting up to 16k tokens.

Input$0.18 /M
Output$1.8 /M
10% off
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$2.7 /M
Output$15$13.5 /M
Cache read$0.3$0.27 /M

Pricing & Specifications

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

Doubao Seed 1.6 Thinking
Kimi K3
Input /M
$0.18
$3$2.710%
Output /M
$1.8
$15$13.510%
Cache read /M
-
$0.3$0.2710%
Context length
256,000
1,048,576
Max output
32,000
1,048,576
Time to First Token
-
0.9 s
Throughput
-
73.1 tok/s
Modalities
textimagevideo
textimagevideo
Supported Parameters
thinkingtoolsfunction callingstructured outputs
thinkingfunction callingstructured outputs
API Formats
Released
-
July 16, 2026

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.

doubao-seed-1-6-thinkingkimi-k3

Tokens / day

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Requests / day

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Performance Past 3 Days

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

doubao-seed-1-6-thinkingkimi-k3

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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Cost calculator

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

Doubao Seed 1.6 Thinking
$37.80 /mo
Kimi K3
$405$365 /mo

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

FAQ

Which is cheaper: Doubao Seed 1.6 Thinking, Kimi K3?

Doubao Seed 1.6 Thinking: $1.8/M output tokens; Kimi K3: $13.5/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

Doubao Seed 1.6 Thinking accepts 256,000 and Kimi K3 accepts 1,048,576 input tokens. Maximum output per request is 32,000 tokens on Doubao Seed 1.6 Thinking and 1,048,576 tokens on Kimi K3.

What inputs and capabilities does each model support?

Doubao Seed 1.6 Thinking accepts text, image and video input and supports thinking, tool calling, function calling and structured outputs; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.

Can I call Doubao Seed 1.6 Thinking 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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