AI news · DeepSeek · models
DeepSeek updates its Flash model and opens its search engine
DeepSeek-V4.1-Flash-1017 gives shorter answers at a lower cost per task, and developers can now call DeepSeek’s own web search.
DeepSeek released an update to its fast, low-cost model on Saturday 17 October 2026, its release note says. DeepSeek-V4.1-Flash-1017 runs in the Chinese lab’s app, website and API. Its weights, the trained files that make up the model, are free to download from Hugging Face and ModelScope.
Answers are shorter now, and DeepSeek says the model also finishes work sooner and beats the last Flash on its benchmarks. Shorter answers mean a smaller bill. On DeepSWE, a coding benchmark, DeepSeek’s chart puts the new model at 77.0 per cent of tasks solved for just under $0.20 each, The Decoder reports. That compares with 74.2 per cent for the earlier version, at roughly $0.50 a task. DeepSeek’s own tables rank it above bigger rivals such as Claude Opus 5 and GPT 5.6-Sol in some coding and agent categories. Independent scores have not been published.
The lab also opened its in-house search engine to every developer. Two endpoints, Search and Fetch, cost $0.75 per 1,000 calls each. DeepSeek API users can make those calls free through DeepSeek Harness, Claude Code and Codex until 16:00 UTC on 31 October 2026, the release note says.
If your team runs coding agents at volume, an open model at a fraction of the per-task cost is one more option to price against the US labs.
Sources
More AI news from
- Meta drops a terms clause critics read as a licence to scrape
- OpenCode tells users to replace API keys after a breach
- ChatGPT ads can target users by email and phone, 404 Media finds
- Disney sets $180 million for 66 Character.AI hires
- Big websites shut the door on AI agents, The Verge finds
- PostgreSQL 19 drops features after AI checks find defects
- Replit makes OpenAI its default model over Anthropic
- Waymo plans robotaxi rides in Toronto from 2028
- Google now pays over 400 publications for AI news features