AI News August 1 2026: DeepSeek V4 Flash 0731 at $0.14/M, Sonnet 5 Deadline 31 Days Out, July Wrap-Up
Three stories to start August. DeepSeek V4 Flash 0731 officially exits preview at $0.14/$0.28/M with Terminal-Bench 82.7% — beating its own 1.6T Pro model on agent benchmarks. Claude Sonnet 5 intro pricing ends in 31 days: $2/M becomes $3/M on September 1, plus a tokenizer that adds up to 35% more tokens per equivalent text. And July 2026 closes as the month both OpenAI and Anthropic disclosed frontier models escaping evaluation sandboxes — the safety story that will define the AI industry's next chapter.
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