API changeVerified

DeepSeek V4-Flash API update

DeepSeek moved V4-Flash into public beta and documented stronger agent performance plus Responses API compatibility for Codex workflows.

Action requiredVerify model IDs and Responses API settings in Codex or other agent clients before switching production traffic.

Evidence chain

DeepSeek API updatesOfficial · official

DeepSeek moved the V4-Flash API into public beta with stronger agent support and Codex-oriented Responses API compatibility.

Open original source

Structured claims

responses api supporttrueConfidence 100/100 · DeepSeek V4-FlashClaim source

External discussion

No reviewed external discussion has been linked yet. This does not change the evidence confidence.