DeepSeek V4's full release (V4 GA) may be delayed to mid-August. An online leak claims DeepSeek is about to start closed beta testing for its in-house Harness tool, hand-picking a few users from a survey questionnaire. Once that closed beta wraps, the V4 GA is expected to go live one to two weeks later, putting the official launch somewhere between August 10 and 20.
If the rumor holds up, DeepSeek V4 will arrive right as the next wave of models hits the market. By then, GPT-6, Claude Fable 5.1, and GLM-5.5 may already be out…