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Model comparison
Qwen3.8 Max vs Kimi K3
Compare Qwen3.8 Max and Kimi K3 using the same provider-sourced text & reasoning rubric. No mystery score and no invented benchmark ranking.
Facts checked September 4, 2026
Estimate your cost
Set your usage. Your estimate updates as you type.
Example: 6,000 input tokens for 10 pages, plus a 500-token summary. Page lengths vary; adjust the numbers below.
One run sends your input to the model once and receives an answer. Tokens are pieces of text: input is what you send, output is the answer you receive.
Advanced options
How this estimate works
Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.
| Model | Access | Estimated total (USD) |
|---|---|---|
| Kimi K3Moonshot AI | Moonshot AI | No reviewed rate |
| Qwen3.8 MaxQwen | Qwen | No reviewed rate |
Quick take
Qwen3.8 Max
Alibaba's frontier Qwen model for long-context reasoning, coding, tools, and understanding text, images, and video.
Best for
- Long coding and agent workflows
- Large document or repository analysis
- Multimodal reasoning with tool use
Watch out for
The moving alias and dated snapshots may not point to the same checkpoint on every provider. Pin a version where reproducibility matters and verify the live price for very long prompts.
Kimi K3
Moonshot AI's frontier multimodal model for million-token coding, reasoning, knowledge work, and tool-driven agents.
Best for
- Large codebase and document work
- Agents that repeatedly reuse a long context
- Multimodal reasoning through a direct or gateway API
Watch out for
Moonshot's public terms permit broad service-improvement uses of submitted content. Treat the provider route and enterprise agreement as a core requirement for confidential work.
Compare the published facts
Qwen3.8 Max vs Kimi K3
Values use each provider's own published units and limits. A blank means the provider did not publish a directly comparable value in the sources reviewed.
| Text & reasoning | Qwen3.8 Max | Kimi K3 |
|---|---|---|
| Context windowMaximum combined prompt and working context documented by the provider. | 1M tokens | 1M tokens |
| Maximum outputProvider-published response limit, where available. | Up to 131,072 tokens on OpenRouter | Not separately published for the direct API |
| Knowledge cutoffLatest reliable knowledge date explicitly published by the model provider. Search and connected tools can retrieve newer information but do not change the model's built-in cutoff. | Not published | Not published |
| Input priceCurrent standard list price per million input tokens unless noted. | $2 / 1M on OpenRouter | $3 / 1M uncached; $0.30 cached |
| Output priceCurrent standard list price per million output tokens unless noted. | $6 / 1M on OpenRouter | $15 / 1M |
| InputsMedia types accepted by the listed model endpoint. | Text, image, video | Text, image |
| Tools & agentsSelected native tools and agent-building capabilities, not an exhaustive list. | Tools, structured output, reasoning controls | Tools, agent workflows, reasoning levels, dynamic tool loading on supported routes |
How to choose
Compare the job, not the hype.
Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.
Qwen3.8 Max
QwenCloud says it does not retain API inputs or outputs for training and processes them in memory; conversation storage can be disabled. OpenRouter and its underlying provider routes have separate settings and terms.
Provider and API links
Kimi K3
Moonshot's API privacy and model-use terms allow submitted content to be stored and used to provide, maintain, develop, and improve the service. Obtain appropriate enterprise terms before sending sensitive material.
Frequently asked questions
Qwen3.8 Max vs Kimi K3 FAQ
What is the main difference between Qwen3.8 Max and Kimi K3?
Qwen3.8 Max: Alibaba's frontier Qwen model for long-context reasoning, coding, tools, and understanding text, images, and video. Kimi K3: Moonshot AI's frontier multimodal model for million-token coding, reasoning, knowledge work, and tool-driven agents.
Should I choose Qwen3.8 Max or Kimi K3?
Consider Qwen3.8 Max when your priority is Long coding and agent workflows. Consider Kimi K3 when your priority is Large codebase and document work. Test both with your own data and provider route before committing.
Is this Qwen3.8 Max vs Kimi K3 comparison based on Cody benchmarks?
No. This comparison aligns provider-published facts for the Text & reasoning category. It does not claim a universal winner or combine incompatible third-party benchmark scores.