Xing4.0-29B-A4B from China Telecom's TeleAI team runs free on OpenRouter: 262,144-token context at $0 input and output.
The open-weight mixture-of-experts model (29B total, 4B active per token) succeeds the TeleChat series and ships under Apache 2.0, with weights on Hugging Face; OpenRouter added the free endpoint on October 16.
The catch: free-tier OpenRouter models run under shared rate limits, and the endpoint is new enough that availability can change without notice.
How to claim: 1) Create an OpenRouter account → 2) Call the model xingchen-agi/xing4.0-29b-a4b:free via API or the model page → 3) Stay within the free quota.
Deadline: Ongoing.
Link: Xing4.0 29B A4B on OpenRouter
China Telecom's Xing4.0 29B: Free API Access on OpenRouter
262K context at $0 input and output, Apache 2.0 open weights
Catch: shared OpenRouter free-tier rate limits; new endpoint, terms may change
Ongoing; claim with an OpenRouter account and the :free model id
Oct 17, 2026, 2:08 AM · OpenRouter / XingChen AGI
Offers mentioned
- OpenRouter Free AI Models Verified Oct 12, 2026
Call OpenRouter's rotating :free model variants at $0 per token through its OpenAI-compatible API: text chat models such as Gemma 4, NVIDIA Nemotron and MiniMax M3.1 Flash, plus free embedding, rerank and text-to-speech models.
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Source: OpenRouter / XingChen AGI · More info