Comparisons / DeepSeek vs Qwen vs Mistral: open-weight AI chat

DeepSeek vs Qwen vs Mistral: open-weight AI chat

Choosing a tool for free chat from open-weight model makers? Here is how DeepSeek, Qwen Chat and Mistral Vibe (Le Chat) compare on price, free tier and what each is best at. Prices come from each vendor's pricing page; the check date is shown under each source.

DeepSeekQwen ChatMistral Vibe (Le Chat)
Paid entry planSee vendor pricingFree (API is pay-per-use) ✓ checkedPro $14.99/mo ✓ checked
Free tierFreeFreeYes: Limited messages, web searches and coding sessions; basic image generation; caps not published
Open source / localOpen weights: MIT (DeepSeek-R1)Open weights: Apache 2.0 for most Qwen3 models (some use the Qwen Community License)Open weights: Apache 2.0 for models such as Mistral Small 3.2
Best forFree reasoning and math chatFree chat with Alibaba's open-weight Qwen modelsEuropean AI chat and coding agent from a maker of open-weight models
CategoryAI assistantsAI assistantsAI assistants
Pricing sourceapi-docs.deepseek.com
checked 2026-10-22
qwen.ai
checked 2026-10-23
mistral.ai
checked 2026-10-23
Visit DeepSeek →Visit Qwen Chat →Visit Mistral Vibe (Le Chat) →

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“Verified” means the listed price appeared on the vendor's pricing page during our automated check. “Unconfirmed” means the page could not be read automatically (often a bot block or a price that renders with JavaScript); confirm on the vendor page before buying. Plans and regional pricing change. Some links are affiliate links (disclosure).