Models

Aihub Phi 4 vs Kimi K3

Output tokens cost $0.48 per million on Aihub Phi 4 and $15.00 per million on Kimi K3. Input tokens cost $0.12 per million on Aihub Phi 4 and $3.00 per million on Kimi K3. Cached input tokens are billed at $0.12 per million on Aihub Phi 4 and $0.30 per million on Kimi K3. Context lengths are 16,400 tokens on Aihub Phi 4 and 1,048,576 tokens on Kimi K3. Time to first token (TTFT) measured on AIHubMix is 0.4s on Aihub Phi 4 and 0.9s on Kimi K3. Measured output throughput is 46.2 tok/s on Aihub Phi 4 and 73.1 tok/s on Kimi K3. On the LMArena coding leaderboard Aihub Phi 4 scores 1307 and Kimi K3 scores 1531.

MicrosoftAihub Phi 4Moonshot AIKimi K3
Microsoft logo
Aihub Phi 4
Microsoft · text → text

Phi-4 is a state-of-the-art open model based on a combination of synthetic datasets, curated public domain website data, and acquired academic books and QA datasets. The approach aims to ensure that small, efficient models are trained using data focused on high quality and advanced reasoning.

Input$0.12 /M
Output$0.48 /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.

Aihub Phi 4
Kimi K3
Input /M
$0.12
$3.00
Output /M
$0.48
$15.00
Cache read /M
$0.12
$0.30
Context length
16,400
1,048,576
Max output
16,400
1,048,576
Time to First Token
0.4 s
0.9 s
Throughput
46.2 tok/s
73.1 tok/s
Modalities
text
textimagevideo
Supported Parameters
thinkingfunction callingstructured outputs
API Formats
Released
-
-

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.

aihub-Phi-4kimi-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.

aihub-Phi-4kimi-k3

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
aihub-Phi-4kimi-k3
1180128013801480
Overall
12561486
Coding
13071531
Math
12651265
Hard prompts
12781505
Instruction following
12451479
Multi-turn
12421499
Creative writing
12101470
Longer query
12661502
Chinese
12671527
English
12721491

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

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

Aihub Phi 4
$14.40 /mo
Kimi K3
$405 /mo

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

FAQ

Which is cheaper: Aihub Phi 4, Kimi K3?

Aihub Phi 4: $0.48/M output tokens; Kimi K3: $15.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Kimi K3: 1531; Aihub Phi 4: 1307 (LMArena coding leaderboard).

Which responds faster?

Aihub Phi 4: 0.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Aihub Phi 4 accepts 16,400 and Kimi K3 accepts 1,048,576 input tokens. Maximum output per request is 16,400 tokens on Aihub Phi 4 and 1,048,576 tokens on Kimi K3.

Which one generates tokens faster?

Kimi K3 at 73.1 tok/s and Aihub Phi 4 at 46.2 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Aihub Phi 4 accepts text input; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.

Can I call Aihub Phi 4 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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