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DeepSeek V4.1 Flash API pricing, benchmarks and specs | AshnaAI

DeepSeek

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash combines a one-million-token context window with configurable thinking and vision input.

Try this model API docs

Model details

Model ID: deepseek-v4.1-flash
Provider: DeepSeek
Modality: Text generation
Context window: 1,000,000 tokens
Input → output: Text / image → text
Released: Sep 10, 2026
Available on AshnaAI: Oct 3, 2026

Where this model fits

Best capabilities

Tool calling and agent workflows
Image and document understanding
Web-connected research tasks
Long-context analysis across large inputs

Best for

General chat, writing, summarization, and structured extraction
Interactive and high-volume workloads where latency and cost matter
Agents that need to call APIs or execute multi-step workflows

Not ideal for

The most difficult reasoning tasks where a frontier model is preferred

Benchmarks

DeepSWE v1.174.2

Source: DeepSeek model comparison

Terminal-Bench 2.190.6

Source: DeepSeek model comparison

Pricing (USD)

Limited-time 30% discount

Input / 1M tokens: $0.361$0.253
Output / 1M tokens: $1.45$1.01
Cached input / 1M: $0.036$0.025
Cache write / 1M: —

Capabilities

reasoning—
toolsSupported
visionSupported
web searchSupported
filesSupported

Available regions

US East (N. Virginia)

us-east-1

Europe (Frankfurt)

eu-central-1

Asia Pacific (Mumbai)

ap-south-1

Multi-region and provider failover: Active

Requests automatically switch to another region or provider if one becomes unavailable.