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Kimi K3 vs Qwen3.8 Flash pricing

Prices

Kimi K3 and Qwen3.8 Flash prices, USD per 1M tokens
USD per 1M tokensKimi K3Qwen3.8 Flash
Input$3.00$0.15
Output$15.00$0.47
Cache read$0.30$0.016
Cache write$3.00$0.20
Batch inputNot publishedNot published
Batch outputNot publishedNot published

Moonshot AI's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

Monthly cost by workload

WorkloadKimi K3Qwen3.8 Flash
Chatbot1,000 in / 500 out tokens, 10,000 requests a day$3,150/mo$115.50/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day$4,725/mo$215.25/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input$2,160/mo$92.40/mo

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Context and capabilities

Kimi K3Qwen3.8 Flash
Context1,048,576 tokens1,000,000 tokens
Max output1,048,576 tokens131,072 tokens
Inputtext, image, videotext, image, video
Tool callingYesYes
ReasoningYesYes
Structured outputsYesYes

Questions

What is the price difference between Kimi K3 and Qwen3.8 Flash?
Kimi K3: $3.00 per 1M input tokens and $15.00 per 1M output tokens. Qwen3.8 Flash: $0.15 per 1M input tokens and $0.47 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $3,150 per month for Kimi K3 and $115.50 for Qwen3.8 Flash.
Which has the longer context window, Kimi K3 or Qwen3.8 Flash?
Kimi K3 has the longer context window: up to 1,048,576 tokens, compared with 1,000,000 for Qwen3.8 Flash.
Do Kimi K3 and Qwen3.8 Flash have prompt caching and batch prices?
Kimi K3: cached input $0.30 per 1M tokens; no batch price published. Qwen3.8 Flash: cached input $0.016 per 1M tokens; no batch price published.

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