DeepSeek upgrades deepseek-flash to V4.1-Flash-1017
Calls to the deepseek-flash model now run DeepSeek-V4.1-Flash-1017, which DeepSeek says finishes tasks faster with shorter output, at unchanged pricing.
Why it matters. Existing integrations get the new model with no code change, so rerun your evals, and DeepSeek recommends Harness 0.2.1-rc.1 or later.
Source: DeepSeek API change log