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DeepSeek Releases V4.1-Flash-1017 Checkpoint and Opens Search/Fetch APIs

DeepSeek shipped DeepSeek-V4.1-Flash-1017, a post-training checkpoint of its V4.1-Flash model served as deepseek-flash via OpenAI- and Anthropic-format endpoints. DeepSeek reports it beats the prior V4.1-Flash release on all 11 benchmarks it published, including 77.0 on DeepSWE v1.1, while still trailing Claude Opus 5 on Terminal-Bench 4.0 and HLE. The company also opened Search and Fetch APIs to all developers, priced at $0.75 per 1,000 successful requests per endpoint, with harness calls free