Kimi K2.5 vs Qwen3.8 Max Preview

Output tokens cost $3.00 per million on Kimi K2.5 and $1.01 per million on Qwen3.8 Max Preview. Input tokens cost $0.60 per million on Kimi K2.5 and $0.34 per million on Qwen3.8 Max Preview. Cached input tokens are billed at $0.11 per million on Kimi K2.5 and $0.03 per million on Qwen3.8 Max Preview. Context lengths are 256,000 tokens on Kimi K2.5 and 983,616 tokens on Qwen3.8 Max Preview. Time to first token (TTFT) measured on AIHubMix is 1.1s on Kimi K2.5 and 2.4s on Qwen3.8 Max Preview. Measured output throughput is 32.1 tok/s on Kimi K2.5 and 48.1 tok/s on Qwen3.8 Max Preview. On the LMArena coding leaderboard Kimi K2.5 scores 1501 and Qwen3.8 Max Preview scores 1520.

Kimi K2.5

Qwen3.8 Max Preview

+ Add model · 2/4

Kimi K2.5

Moonshot AI · text, image, video → text

Kimi K2.5 is the smartest model of Kimi to date, achieving open-source state-of-the-art (SoTA) performance in Agent, coding, visual understanding, and a series of general intelligent tasks. At the same time, Kimi K2.5 is also the most versatile model of Kimi so far, with a native multimodal architecture design that supports both visual and text input, thinking and non-thinking modes, as well as dialogue and Agent tasks.

Input$0.60 /M

Output$3.00 /M

Details

Qwen3.8 Max Preview

Qwen · text, image → text

Qwen 3.8 Max Preview(Qwen3.8-Max-Preview) is the latest-generation foundation model in the Qwen family, packing 2.4T parameters and still evolving. Compared with the previous flagship Qwen 3.7 Max, it delivers major gains in core capabilities like Coding and Cowork (professional productivity), with world-leading performance on complex, long-horizon tasks such as full-stack development, data analysis, and Office workflows. Launch offer: Credits are consumed at just 20% of the standard rate, effectively 5× your usage. Limited time only.

Input$0.34 /M

Output$1.01 /M

Details

Pricing & Specifications

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

Kimi K2.5

Qwen3.8 Max Preview

Input /M

$0.60

$0.34

Output /M

$3.00

$1.01

Cache read /M

$0.11

$0.03

Context length

256,000

983,616

Max output

131,072

Time to First Token

1.1 s

2.4 s

Throughput

32.1 tok/s

48.1 tok/s

Modalities

textimagevideo

textimage

Supported Parameters

thinkingfunction callingstructured outputs

toolsfunction callingstructured outputsweblong contextthinking

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.

kimi-k2.5qwen3.8-max-preview

Tokens / day

Requests / day

Performance Past 3 Days

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

kimi-k2.5qwen3.8-max-preview

Throughput (tok/s)

TTFT (s)

Uptime (%)

LMArena Benchmarks

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

Text

kimi-k2.5qwen3.8-max-preview

1400146015201580

Overall

14501481

Coding

15011520

Math

14701504

Hard prompts

14721506

Instruction following

14401478

Multi-turn

14521496

Creative writing

14221469

Longer query

14591497

Chinese

15021545

English

14611486

Vision

kimi-k2.5qwen3.8-max-preview

1220126013001340

Overall

12501302

OCR

12641317

Diagram

12781331

Homework

12891335

WebDev Arena

kimi-k2.5qwen3.8-max-preview

1400150016001700

Overall

14361669

React

14291678

HTML

14301628

Gaming

14271733

Simulations

14291665

Data analytics

14241614

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.

Requests / day

Avg input tokens / request

Avg output tokens / request

Qwen3.8 Max Preview

$35.49 /mo

Kimi K2.5

$81.00 /mo

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

FAQ

Which is cheaper: Kimi K2.5, Qwen3.8 Max Preview?

Qwen3.8 Max Preview: $1.01/M output tokens; Kimi K2.5: $3.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Qwen3.8 Max Preview: 1520; Kimi K2.5: 1501 (LMArena coding leaderboard).

Which responds faster?

Kimi K2.5: 1.1s 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?

Kimi K2.5 accepts 256,000 and Qwen3.8 Max Preview accepts 983,616 input tokens.

Which one generates tokens faster?

Qwen3.8 Max Preview at 48.1 tok/s and Kimi K2.5 at 32.1 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Kimi K2.5 accepts text, image and video input and supports thinking, function calling and structured outputs; Qwen3.8 Max Preview accepts text and image input and supports tool calling, function calling, structured outputs, web search, long context and thinking.

Can I call Kimi K2.5 and Qwen3.8 Max Preview 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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Kimi K2.5 vs Qwen3.8 Max Preview

Pricing & Specifications

Activity Past 30 Days

Tokens / day

Requests / day

Performance Past 3 Days

Throughput (tok/s)

TTFT (s)

Uptime (%)

LMArena Benchmarks

Cost calculator

FAQ

Popular comparisons

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