DeepSeek: DeepSeek V4.1 Flash

DeepSeek

DeepSeek: DeepSeek V4.1 Flash by DeepSeek costs $0.01 per 1M input tokens and $0.89 per 1M output tokens, with a 1M-token context window.

Pricing

Input (per 1M tokens)

$0.01

Output (per 1M tokens)

$0.89

Cached input (per 1M)

$0.00

Specifications

Provider: DeepSeek
Context window: 1M tokens
Parameters: —
Released: —
Open weights: —
Frontier model: No
Hugging Face: deepseek-ai/DeepSeek-V4.1-Flash

Benchmarks

Epoch Capabilities Index: 155.6
GPQA Diamond: 89.8
LMArena (Chatbot Arena) Elo: 1462.5
LMArena Vision Elo: 1276.6
LMArena WebDev Elo: 1618.5

Speed & latency

Time to first token

3.09s

Output speed

523 tok/s

Fastest host: particle (via vercel-ai-gateway).

Compare DeepSeek: DeepSeek V4.1 Flash with…

DeepSeek: DeepSeek V4.1 Flash vs GLM 4.6V$0.90/1M DeepSeek: DeepSeek V4.1 Flash vs GLM 5.3 Flash$0.90/1M DeepSeek: DeepSeek V4.1 Flash vs MiMo-V2-Pro$0.87/1M DeepSeek: DeepSeek V4.1 Flash vs MiMo-V2.5-Pro$0.87/1M DeepSeek: DeepSeek V4.1 Flash vs MiMo-V2.6-Pro$0.87/1M DeepSeek: DeepSeek V4.1 Flash vs QwQ 32B$0.86/1M

FAQ

How much does DeepSeek: DeepSeek V4.1 Flash cost?

DeepSeek: DeepSeek V4.1 Flash is priced at $0.01 per 1M input tokens and $0.89 per 1M output tokens. Output tokens cost more than input.

What is DeepSeek: DeepSeek V4.1 Flash's context window?

DeepSeek: DeepSeek V4.1 Flash supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.

Is DeepSeek: DeepSeek V4.1 Flash open weight?

Open-weight status for DeepSeek: DeepSeek V4.1 Flash is not recorded in our dataset.

Data as of 2026-10-15. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.