Rumor has it that DeepSeek Harness will kick off its internal testing this week, aiming to replicate the success of Claude Code.

BlockBeats News, July 28th. According to Max For AI, Deepseek's self-developed Harness tool is about to start internal testing. The leaked screenshot circulating in the community shows that DeepSeek Harness is scheduled to start internal testing later this week, with the first batch of users being selected from a small group chat. Selected participants will need to submit personal information, sign a Confidentiality Agreement, and obtain product access permission.

Of particular note, the image also clearly warns: once leaked, not only will the individual be disqualified, but it will also affect future DeepSeek model tests, product beta tests, and collaboration opportunities. If the information is accurate, the V4 official version and Harness will be announced soon.

Previously reported by BlockBeats, the DeepSeek V4 official version (V4 GA) may be delayed until mid-August. About 1 to 2 weeks after the conclusion of the Harness closed beta, V4 will be opened, with the release date possibly between August 10th and 20th. If the information is accurate, DeepSeek V4 may face tougher competition upon its launch. By then, next-generation models such as GPT-6, Claude Fable 5.1, GLM-5.5, and others may have already entered the market.

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