About this site
A reference record for a moving API surface.
This site documents the July 31, 2026 DeepSeek V4 Flash API release for readers who need a clear distinction between published facts, independent measurements, and practical interpretation.
What it is
A guide for evaluation, not a provider claim.
The site is independent and is not operated by, affiliated with, or endorsed by DeepSeek, Z.ai, or OpenAI. Product names are used only to identify the technologies discussed.
It is designed for engineers and teams evaluating a model release: source-led context first, followed by carefully limited interpretation and comparisons that retain the conditions behind each claim.
Accountability
State limits instead of inventing authority.
Content is maintained by the DeepSeek V4 Flash 0731 Reference Editorial Desk. No named individual author or credential is claimed unless it is supplied and can be published accurately.
The current record is documentation synthesis, not original benchmark research. Any future first-party evaluation will disclose its model route, date, settings, task set, scoring rule, and limitations.