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Models2026-07-31 · source-backed
The changelog lists Terminal Bench 2.1 at 82.7, NL2Repo 54.2, Cybergym 76.7, DeepSWE 54.4, Toolathlon verified 70.3, DSBench-FullStack 68.7 and DSBench-Hard 59.6: figures DeepSeek says far exceed V4-Pro-Preview. Native Responses API support and specific Codex adaptation. Only the Flash API changed; V4-Pro and the app/web models are unchanged with the official Pro release to follow. 752 upvotes on r/LocalLLaMA, 445 points on HN.
Each link below shares sources, entities, or timing with this story.
DeepSeek released V4 Preview / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (DeepSeek released V4 Preview); both cover DeepSeek, Flash, LocalLLaMA; overlapping topics (benchmark, deepseek).
openclaude uses DeepSeek / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (openclaude uses DeepSeek); both cover Codex, DeepSeek; overlapping topics (agent, codex).
DeepSeek competes with Anthropic / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (DeepSeek competes with Anthropic); both cover LocalLLaMA, Preview; overlapping topics (agent, benchmark).
Codex competes with Claude Code / Shared entity: Codex / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Codex competes with Claude Code); both cover Codex; overlapping topics (agent, beat, benchmark, codex).
DeepSeek uses Cambricon / Shared entities / Earlier coverage
Linked by a graph relationship (DeepSeek uses Cambricon); both cover DeepSeek, Flash, LocalLLaMA; earlier DeepSeek coverage from 2026-04-26.
DeepSeek released DeepSeek V4 Pro / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (DeepSeek released DeepSeek V4 Pro); both cover DeepSeek, Flash; overlapping topics (beat, benchmark, deepseek).
OpenAI released Codex / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (OpenAI released Codex); both cover Codex, Flash; overlapping topics (agent, codex).
Codex competes with Gemini / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Codex competes with Gemini); both cover Codex, DeepSeek; overlapping topics (codex, deepseek).