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DeepSeek V4.1 Flash — AI News Today

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DeepSeek V4.1 Flash is DeepSeek's September 2026 update to its fast, low-cost V4 Flash model. It supports a 1-million-token context window and adds an FP4 KV cache and cross-layer attention reuse to cut the memory cost of long-context, agent-style workloads; early testers reported it reaching about 98% of GPT-6 Astra's score on the OpenDesign Arena at roughly 1.4% of the cost.

www.deepseek.com

61 stories about DeepSeek V4.1 Flash

2 from your feeds10 from search

About DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is a large language model by DeepSeek. DeepSeek V4.1 Flash is DeepSeek's September 2026 update to its fast, low-cost V4 Flash model. It supports a 1-million-token context window and adds an FP4 KV cache and cross-layer attention reuse to cut the memory cost of long-context, agent-style workloads; early testers reported it reaching about 98% of GPT-6 Astra's score on the OpenDesign Arena at roughly 1.4% of the cost. This page tracks 61 recent news stories about DeepSeek V4.1 Flash, curated from 30+ sources and updated every 15 minutes.

DeepSeek V4.1 Flash — Coverage Momentum

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First tracked May 2026. Most-citing sources: r/LocalLLaMA (8), r/singularity (2), Data Science in Your Pocket (2), Medium (2). Data aggregated by Best AI News Today from 30+ sources.

61 stories
2 of 5 Top Stories
Breaking
DeepSeek V4.1 Flash Beats OpenAI’s GPT-5.6 Sol And Anthropic’s Opus 5 On Coding And Cybersecurity At An ~86x Lower Cost, While Reducing HBM Requirements By 3.8x And SSD Ones By 8x
BreakingMedia

DeepSeek V4.1 Flash Beats OpenAI’s GPT-5.6 Sol And Anthropic’s Opus 5 On Coding And Cybersecurity At An ~86x Lower Cost, While Reducing HBM Requirements By 3.8x And SSD Ones By 8x

A Chinese artificial intelligence startup has dethroned American competitors in critical technical domains—coding and cybersecurity—while operating at a fraction of the cost, raising urgent questions about whether the United States' AI dominance rests on unsustainable economics rather than fundamental superiority. DeepSeek's latest model achieves this feat while dramatically slashing the computing infrastructure required to run it, a combination that could democratize access to powerful AI systems and upend the current market hierarchy. The findings, confirmed across major tech publications, suggest the race for AI supremacy may no longer be decided by who spends the most, but by who engineers the smartest.

Wccftech faviconWccftech·
Related OpenAI Anthropic DeepSeekDeepSeekGPT-5.6+3

14 sources

Cerebras faviconCerebrasMacRumors faviconMacRumorsTom's Hardware faviconTom's Hardware
Media

Jefferies: DeepSeek-V4.1-Flash offers high cost-effectiveness and superior intelligent performance, intensifying competition among AI models

富途牛牛 favicon富途牛牛·
DeepSeek launches cheaper V4.1 Flash AI model, intensifying price war with OpenAI and Anthropic
Media

DeepSeek launches cheaper V4.1 Flash AI model, intensifying price war with OpenAI and Anthropic

Chinese AI startup DeepSeek has introduced a new AI model at significantly lower prices, adding fresh pressure to both Chinese and US-based artificial intelligence companies. The company has launched...

Newspoint on MSN faviconNewspoint on MSN·
DeepSeek V4.1-Flash: What Its 552B Parameters and 8B Active Parameters Mean
Media

DeepSeek V4.1-Flash: What Its 552B Parameters and 8B Active Parameters Mean

DeepSeek V4.1-Flash has 552B total parameters but activates 8B during prefill and 16B during decode. Here's why the architecture matters for AI costs.

International Business Times Singapore faviconInternational Business Times Singapore·
DeepSeek V4.1 Flash é lançado com desempenho topo de linha, mas custo reduzido
Media

DeepSeek V4.1 Flash é lançado com desempenho topo de linha, mas custo reduzido

O novo DeepSeek V4.1 Flash promete entregar performance comparável a modelos de ponta, como Claude Opus 5 e GPT-5.6 Sol, mas com custo de modelo intermediário.

Estadão faviconEstadão·
Media

DeepSeek Launches V4.1-Flash to Make Large-Scale AI Inference Cheaper

analyticsindiamag.com faviconanalyticsindiamag.com·
DeepSeek releases DeepSeek-V4.1-Flash!
Discussions

DeepSeek releases DeepSeek-V4.1-Flash!

It's here at last. to r/LocalLLM

r/LocalLLM faviconr/LocalLLM·
DeepSeek releases V4.1-Flash, says it outperforms flagship V4-Pro
Media

DeepSeek releases V4.1-Flash, says it outperforms flagship V4-Pro

SiliconANGLE faviconSiliconANGLE·
DeepSeek begins limited-time beta of V4.1 Flash multimodal model
Media

DeepSeek begins limited-time beta of V4.1 Flash multimodal model

TechNode faviconTechNode·
Discussions

Harness does matter

I was not aware that the harness makes such a big difference. DeepSeek V4.1 Flash

r/LocalLLaMA faviconr/LocalLLaMA·
890 bytes is what deepseek v4.1 flash needs to store one token.
Media

890 bytes is what deepseek v4.1 flash needs to store one token.

by Aaryan Kakad — 890 bytes. that’s what deepseek v4.1 flash needs to remember one token. and their own v1 model needed 389,120 bytes for the same job.

Medium faviconMedium·
Deepseek V4.1 Flash Release Video [Made with Deepseek V4.1 Flash]
Discussions

Deepseek V4.1 Flash Release Video [Made with Deepseek V4.1 Flash]

I like to benchmark new models that come out on motion videos. So here's a test I did for deepseek v4.1 flash. And I have to say flash has probably graduated from being a Luna class model to nearly...

r/LocalLLaMA faviconr/LocalLLaMA·
Media

How to Use DeepSeek V4.1 Flash API: 12 Steps, $0.22/M [2026] - tech-insider.org

tech-insider.org favicontech-insider.org·
DeepSeek's V4.1 Flash Cranks Up the AI Price War, Charging Under a Penny per Million Tokens
Media

DeepSeek's V4.1 Flash Cranks Up the AI Price War, Charging Under a Penny per Million Tokens

Briefs Finance faviconBriefs Finance·
DeepSeek-V4.1-Flash: it should be called V5, open source, and beat Opus 5.0
Media

DeepSeek-V4.1-Flash: it should be called V5, open source, and beat Opus 5.0

by Andrew Zhu — DeepSeek rebuilt a frontier model from scratch in six weeks — new architecture, MIT weights on day one, and benchmark scores that leave…

Medium faviconMedium·
New Deepseek model V4.1-Flash cuts memory needs for AI agents - the-decoder.com
Media

New Deepseek model V4.1-Flash cuts memory needs for AI agents - the-decoder.com

the-decoder.com faviconthe-decoder.com·
Media

DeepSeek V4.1 Flash Released: Benchmarks, Pricing, and Pro Retirement

Intelligent Living faviconIntelligent Living·
Media

DeepSeek V4.1 Flash Officially Launched: Cui Tianyi Enters the Top-Tier AI Model "Godfather Battle"

36 Kr favicon36 Kr·
Media

DeepSeek V4.1-Flash targets lower AI agent costs

techinasia.com favicontechinasia.com·

Frequently Asked Questions

What is DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is DeepSeek V4.1 Flash is DeepSeek's September 2026 update to its fast, low-cost V4 Flash model. It supports a 1-million-token context window and adds an FP4 KV cache and cross-layer attention reuse to cut the memory cost of long-context, agent-style workloads; early testers reported it reaching about 98% of GPT-6 Astra's score on the OpenDesign Arena at roughly 1.4% of the cost.

Where can I access DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is available at https://www.deepseek.com. It's developed by DeepSeek.

What is the latest news about DeepSeek V4.1 Flash?

As of today, there are 61 recent stories about DeepSeek V4.1 Flash. Recent headlines include: Jefferies: DeepSeek-V4.1-Flash offers high cost-effectiveness and superior intelligent performance, intensifying competition among AI models; DeepSeek releases V4.1-Flash, says it outperforms flagship V4-Pro; DeepSeek-V4.1-Flash debuts with $0.003/1M off-peak cached-input rate and benchmarks eclipsing GPT-5.6 Sol, Claude Opus 5. Updated every 15 minutes.

What other LLM AI models are there?

DeepSeek V4.1 Flash is part of the LLM model category. Browse all comparable AI llm models with live news mentions and benchmarks.