Show me open source AI chatbots

5 open source AI chatbots. All have a free plan. Half of the paid plans start at $14.99 a month or less. Newest check: 2 Nov 2026.

268 of 721 tools were checked against the vendor's own page in the last 30 days.

ToolPrice fromFree planRuns onRatingChecked
QwenAlibaba's free Qwen chat app for web, desktop and mobile, plus a per-token Model Studio API and open-weight models you can self-host.--YesWeb · iOS · Android · Mac · Windows4.42 Nov
DeepSeekDeepSeek's free chat app and low-cost developer API, running MIT-licensed open-weight models with long context, a thinking mode and image input.--YesWeb · iOS · Android4.32 Nov
Meta AIMeta's free assistant inside Facebook, Instagram, WhatsApp and Messenger, powered by Muse Spark, with Meta One bundles for heavier image and video generation.$7.99/moYesWeb · iOS · Android4.328 Oct
KimiMoonshot AI's chat app and developer API running the open-weight Kimi K3 family, with agent tools, Swarm and up to 1M tokens of context.$19/moYesWeb · iOS · Android4.22 Nov
Mistral AIMistral AI is a Paris-based AI lab building open-weight foundation models such as Mistral Large 4 and the Vibe assistant, with EU-hosted infrastructure.$14.99/moYesWeb · iOS · Android · Mac · Windows3.910 Oct

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