DeepSeek: what I’ve logged

DeepSeek comes up in 11 posts of my AI log, from September 2025 to September 2026, and each item below links to the primary source. The releases I logged include DeepSeek V4.1 Flash, DeepSeek V4 Flash Vision Exp and DeepSeek-V4 Preview, filed under open weights, agents and coding and science.

Items that mention DeepSeek

DeepSeek 7 Sep 2026
DeepSeek V4.1 Flash
A 552B mixture-of-experts model under MIT with native vision, 1M context and a new encoder-decoder design that uses 8B active parameters for input and 16B for output.
Primary source
DeepSeek 17 Aug 2026
DeepSeek V4 Flash Vision Exp
An experimental image-capable version of V4 Flash that matches its text quality, billed at V4 Flash text rates with images costing up to 384 tokens each.
Primary source
DeepSeek 20 Apr 2026
DeepSeek-V4 Preview
Open weights for V4-Pro (1.6T total, 49B active) and V4-Flash (284B total, 13B active), both with a 1M-token default context.
Primary source
DeepSeek 26 Jan 2026
DeepSeek-OCR 2
A second version of DeepSeek's open document reader, which matters to anyone digitising paper-heavy workflows.
Primary source
DeepSeek 12 Jan 2026
Conditional Memory via Scalable Lookup (Engram)
DeepSeek adds a lookup-based memory as a second axis of sparsity next to mixture-of-experts.
Primary source
DeepSeek 29 Dec 2025
mHC: Manifold-Constrained Hyper-Connections
DeepSeek proposes a way to widen residual connections in transformers while keeping training stable, a possible architecture lever for future models.
Primary source
DeepSeek 1 Dec 2025
DeepSeek-V3.2
Open weights with sparse attention and tool use built into the reasoning; a higher-compute Speciale variant targets hard problems.
Primary source
DeepSeek 24 Nov 2025
DeepSeekMath-V2
An open math model trained to verify its own proofs, aimed at theorem proving.
Primary source
DeepSeek 20 Oct 2025
DeepSeek-OCR
Tests compressing a page of text into a small number of vision tokens, a possible route to cheaper long context.
Primary source
DeepSeek 29 Sep 2025
DeepSeek-V3.2-Exp
Introduces sparse attention to cut long-context cost, and DeepSeek halved its API prices alongside it.
Primary source
DeepSeek 22 Sep 2025
DeepSeek-V3.1-Terminus
A refinement of V3.1 that fixes mixed-language output and improves its code and search agents.
Primary source