DeepSeek V4.1 Flash hands-on tests and comparisons

A user notes that Modal now offers deepseek-v4-1-flash-1017 and calls the pricing very cheap.

TinyRouter says DeepSeek-V4.1-Flash-1017 is live with a 1M-token context for lightweight reasoning and high throughput, arguing that if a file fits you should send it whole instead of chunking and reranking.

DeepSeek's pricing page lists Search and Fetch at $0.75 per 1,000 successful requests, with server-side calls via Harness, Claude Code and Codex becoming paid on Nov 1; the retired v4-flash model names now route to V4.1-Flash-1017 at Flash pricing.

OpenCode launches 2.0 and announces Operation Cheepseek phase 3, giving $80 of DeepSeek V4.1 Flash usage on a $10 monthly subscription, billed as the cheapest access anywhere.

The release enables DeepSeek V4.1 Flash on Ryzen AI Max Windows, speeds up DeepSeek prompt loading and multi-R9700 setups, adds selectable 512K/1M context (8K default) and image input on by default, and speeds up sub-12GB NVIDIA cards.

Local inference tool Project Maya ships v1.1.34, adding parallel requests for DeepSeek-V4.1-Flash and MiniMax-M3.1-Flash plus speed and stability fixes.

Wally brings DeepSeek V4.1 Flash Uncensored to its platform with open-source security harnesses and hosted inference for authorized defensive security work.

Strata 0.2.7 reworks expert-weight loading and adds adaptive attention buffering, claiming 47% faster 4K prompts and 33% faster 8K prompts on an RTX 5070 12G and 342 tok/s peak prompt reads on Strix Halo.

AMD reports over 2,100 tokens per second per user at full model quality on eight MI355X GPUs, using Lithos AI persistent megakernels.

Strata 0.2.7 speeds up local DeepSeek-V4.1-Flash-1017 inference with up to 65% faster prompt processing, 47% on RTX 5070 at 4K, and native Strix Halo support reaching 300+ tok/s at 4K–32K.

DSH 0.2.1-rc.3 adds DeepSeek Search and Fetch APIs, agent-authored plugins, Claude Code/Codex plugin packs, and support for DeepSeek-V4.1-Flash-1017.

Qoder's international individual users can use DeepSeek V4.1 Flash 1017 free until Oct 31 midnight at a 0.0x billing rate, with a daily usage cap and no Teams or Enterprise access.