Comparison · MoonshotAI and Qwen

Kimi K3 vs Qwen3.8 Max Prime

Listed API prices of Kimi K3 and Qwen3.8 Max Prime turned into the cost of the same three standard tasks. Output quality, speed and answer length are not compared.

Calculated impact cost per task and per month

For an L2 task (deep analysis over a 50,000-token document, 3 steps), Kimi K3 costs $0.522 and Qwen3.8 Max Prime $0.672 at the prices listed in the United States on , so Kimi K3 is 22.3 % less than Qwen3.8 Max Prime, counting visible output only, without cache discounts or hidden reasoning.

TaskKimi K3, per taskQwen3.8 Max Prime, per taskKimi K3, per monthQwen3.8 Max Prime, per monthKimi K3 vs Qwen3.8 Max Prime, per task
L1Micro-task (classification or strict JSON extraction)$0.0075per L1 task$0.0084per L1 task$109.50per month$122.64per month−10.7 %
L2Deep analysis over a 50,000-token document$0.522per L2 task$0.672per L2 task$7,621.20per month$9,811.20per month−22.3 %
L3Agentic coding loop, 15 steps$4.08per L3 task$5.37per L3 task$59,589.90per month$78,402.00per month−24.0 %

Calculated Per month: 20 tasks an hour around the clock, 730 hours.

Prices USD per 1M tokens

PriceKimi K3Qwen3.8 Max Prime
Input, per 1M tokens$3.00$4.00
Output, per 1M tokens$15.00$12.00
Price fromProvider's price list · source page PublishedOpenRouter · source page (data) Published
Read · the United States · the United States
Context window1,048,576 tokens1,000,000 tokens

What can I use it for? six common tasks, our data checks

Quality on your task: not measured by Measured Lab yet.

TaskKimi K3Qwen3.8 Max Prime
Answer customer messagesFits on price and context—
Pull data from invoices and documents with strict JSON and page imagesNot confirmed: strict JSON output not in our data—
Summarize documents and meetingsFits on price and context—
Translate contentFits on price and context—
Chat assistant on your websiteFits on price and context—
Write and review code with tool callsNot confirmed: tool calls not in our data—
Tasks it fits4 of 6—

Checks of our data for six common tasks: a published price, a context window and answer length for the task and, where the task needs them, strict JSON output, page images and tool calls; prices, cost a month and terms for each model on its model card. Qwen3.8 Max Prime is not in the model picker. Compare models for your own task in the model picker.

Price changes in the last 30 days

  • The listed price of Kimi K3 changed on on OpenRouter: output $12.53 → $11.94 per 1M tokens.
  • The listed price of Kimi K3 changed on on OpenRouter: input $0.30 → $0.24 per 1M tokens.
  • The listed price of Kimi K3 changed on on OpenRouter: output $11.94 → $10.80 per 1M tokens.
  • The listed price of Kimi K3 changed on on OpenRouter: input $0.24 → $0.19 per 1M tokens.
  • The listed price of Kimi K3 changed on on OpenRouter: output $10.80 → $15.00 per 1M tokens.
  • The listed price of Kimi K3 changed on on OpenRouter: output $15.00 → $16.00 per 1M tokens.

All model comparisons · How we check prices