Dolphin: Inference API goes live with DeepSeek V4.1 Flash - 11 Oct 2026
First hosted-API availability of V4.1 Flash (Dolphin).
10 items · 2 sources · 7 days
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DeepSeek shipped V4.1 Flash-1017 on Oct 17 with stronger coding and agent performance, lower inference cost and a first public search API; The Decoder says it beats larger rivals on agentic tasks.
DeepSeek V4.1 Flash first showed up in deployments: Dolphin's inference API went live Oct 11 and AMD MI355X posted AA-AgentPerf results Oct 14. Two OrcaRouter comparisons on Oct 16 then priced it against Nemotron 3.5 Super VL and Step 5 Preview.
Arc
First hosted-API availability of V4.1 Flash (Dolphin).
Hardware angle: AMD MI355X posts AA-AgentPerf results with Flash.
Price/index comparison against Nemotron 3.5 Super VL.
Price/index comparison against Step 5 Preview.
Harness v0.2.1-rc1 arrives as an unannounced Flash snapshot briefly appears.
Independent read: beats larger rivals on agentic tasks at lower per-task cost.
Adds the first public access to DeepSeek's proprietary search API.
Confirms a faster Flash model plus the search API.
Names the release Flash-1017 with stronger coding and agent capabilities.
Newest: roundup placing Flash-1017 among open model releases.
First hosted-API availability of V4.1 Flash (Dolphin).
Hardware angle: AMD MI355X posts AA-AgentPerf results with Flash.
Price/index comparison against Nemotron 3.5 Super VL.
Price/index comparison against Step 5 Preview.
Harness v0.2.1-rc1 arrives as an unannounced Flash snapshot briefly appears.
Independent read: beats larger rivals on agentic tasks at lower per-task cost.
Adds the first public access to DeepSeek's proprietary search API.
Confirms a faster Flash model plus the search API.
Names the release Flash-1017 with stronger coding and agent capabilities.
Newest: roundup placing Flash-1017 among open model releases.
What to watch — open questions
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