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DeepSeek V4.1 Flash

DeepSeek · The cost floor of serious AI.

V4 Flash is the cheapest credible 1M-context model on the market — $0.08/M input makes previously impossible volume economics routine.

Live OpenRouter pricing · capability ratings & benchmarks are indicative

Context window

1.0M

tokens

Input · $/1M

$0.044

per million tokens

Output · $/1M

$0.621

per million tokens

Vs. cost floor

floor

cheapest output in the field

Capability profile

Editorial ratings across six axes (0–100), compiled from publisher reports and public evals — indicative, not measured by TrendNexus.

Benchmark highs

MMLU-Pro≈78%

solid broad knowledge

LiveCodeBench≈68%

competent coding

IFEval≈86%

instruction following

Cost per SWE tasklowest

unmatched unit economics

Where it sits in the field

Output cost per million tokens across all 15 tracked flagships — DeepSeek V4.1 Flash highlighted.

Claude Fable 5.1$50.00GPT-5.5$30.00Claude Opus 5.5$20.00GPT-5.6 Terra Pro$12.00Gemini 3.1 Pro Preview$12.00GPT-6.1 Sol Pro$10.00Claude Sonnet 5.5$10.00Kimi K3$10.00GLM 5.3 Prime$8.80Grok 4.7$6.00Qwen3 Max$6.00Gemini 3.8 Flash$3.75DeepSeek V4 Pro 0423$0.872Llama 4 Maverick$0.652DeepSeek V4.1 Flash$0.621

What it's suited to build

Product classes where this model's profile wins — mockups are illustrative, not model output.

Data & analytics

Corpus-scale processing

Classify, extract and summarize millions of documents affordably.

Conversational

Free-tier product AI

Give away AI features without burning margin.

Agents

High-frequency sub-agents

The cheap workers inside multi-agent systems.

Benchmark figures and capability ratings are indicative — compiled from publisher reports and public leaderboards, refreshed editorially, and not independently measured by TrendNexus. Verify against your own evals before procurement decisions. Pricing updates with the daily build.