DeepSeek
DeepSeek is the Chinese lab that upended AI pricing with frontier-class reasoning and coding models at a fraction of Western costs. Its consumer chat app is free, and the DeepSeek API is among the cheapest anywhere, with an OpenAI-compatible interface and open-weight model releases developers can self-host. Models in its V-series and reasoning line are genuinely strong on math, code, and logic. The trade-off is China jurisdiction and data-governance concerns that matter for Western businesses.
Qwen Chat
Qwen Chat is Alibaba's free conversational app built on the Qwen model family, one of the most capable open-weight model lines in the world. The consumer app is permanently free with no obvious message caps -- web, mobile, and desktop -- which undercuts every Western rival on price. Developers can call the same models cheaply through Alibaba's DashScope API (OpenAI-compatible), though the always-free dev tier was replaced by a finite trial in 2026. Its main drawbacks are China hosting, a compliance concern for Western firms, and a consumer UX that trails ChatGPT.
DeepSeek edges Qwen Chat on aggregate — 88 vs 87.
Frontier-class reasoning and coding at rock-bottom prices, with open weights -- held back for Western firms only by China-hosting and compliance concerns. Qwen Chat still wins for buyers who prioritise free, unlimited-feeling consumer chat app. Both tools are independently scored — the right pick depends on which dimensions matter most for your workflow.
Side-by-side, every cell sourced.
Pricing pulled from each tool's public site. Scores follow the BigBang Score rubric — pricing transparency, free tier, API support, update frequency, unique factor, documentation, and community.
Use-case picks.
Cut through the spec sheet. Here's what we'd recommend depending on what matters most.
Pick DeepSeek if…
You prioritise frontier-class reasoning and coding performance and among the cheapest apis anywhere.
Pick Qwen Chat if…
You prioritise free, unlimited-feeling consumer chat app and best-in-class open-weight models to self-host.
Editorial pick
DeepSeek wins our composite score (88/100). It edges ahead on aggregate — but the right tool depends on which dimensions matter most.
Related head-to-heads in AI chat.
DeepSeek vs ChatGPT — AI chat
BigBang Scores 88/100 vs 91/100. Pricing, capabilities, and editorial verdict inside.
DeepSeek vs Google Gemini — AI chat
BigBang Scores 88/100 vs 90/100. Pricing, capabilities, and editorial verdict inside.
DeepSeek vs Z.ai (ChatGLM) — AI chat
BigBang Scores 88/100 vs 88/100. Pricing, capabilities, and editorial verdict inside.
DeepSeek vs Qwen Chat - frequently asked.
Direct answers tuned for AI search engines (ChatGPT, Perplexity, Claude) and Google's People Also Ask.
The short answer.
DeepSeek wins on aggregate, but Qwen Chat pulls ahead on specific axes - the spec sheet above shows where each one earns its keep.