DeepSeek V4

DeepSeek V4 is the official DeepSeek flagship family with Pro and Flash variants, 1M-token context, and a same-endpoint migration story that makes it unusually easy to test as a production coding and agent default.

CodingLong ContextCost-Efficiency

Variants

Pro + Flash

Two official V4 routes let teams separate harder reasoning traffic from cheaper everyday throughput.

Context

The release makes 1M tokens the default long-context headline for both official V4 variants.

Migration

Swap model ID

Keep the endpoint and existing OpenAI-style client shape, then move to the new V4 model names.

Model Overview

DeepSeek V4 — Pro and Flash variants with 1M context.

Official Docs

Params

Pro 1.6T/49B · Flash 284B/13B

Context

Released

Apr 2026

Model overview

Written in a launch-style profile format

The April 24 release positions V4 as a real product reset rather than a soft benchmark update: 1M context is official, the Pro and Flash variants are named, and the API guidance is simply to keep the endpoint and swap the model ID.

For teams shipping agents, V4 is a much cleaner default than the older DeepSeek routes: better tool-call consistency, a clearer split between high-quality and high-throughput traffic, and fewer reasons to keep legacy `deepseek-chat` or `deepseek-reasoner` aliases in new code.

Model highlights

Key strengths and deployment profile

Core strengths

Strong coding quality, long-context retention, and stable structured outputs. The V4 story is not just headline quality, but practical production reliability for tool-heavy developer workloads.

Best-fit scenarios

Ideal for coding copilots, agent backends, long-document reasoning, and cost-sensitive production stacks that need an official API path instead of a speculative migration plan.

Developer experience

Keeps an OpenAI-compatible API surface with streaming, function calling, and JSON workflows. Existing clients can usually stay intact while teams switch the model ID to `deepseek-v4-pro` or `deepseek-v4-flash`.

Variant strategy

Pro is the flagship route for harder reasoning and coding chains, while Flash is the lower-cost option for routine tool steps and higher-throughput production traffic.

See what it can do

See what DeepSeek V4 can do

Production coding assistants and code review tools

Agent pipelines that need tool calling, retries, and long-context prompt handling

High-volume API workloads where spend discipline matters as much as output quality

Built for developers

Give developers more control

New integrations should target `deepseek-v4-pro` or `deepseek-v4-flash` directly instead of building on legacy alias names.

OpenAI-compatible API endpoint at api.deepseek.com.

Both official V4 variants support 1M context plus Thinking and Non-Thinking modes.

Best For

Who should start with this model

Teams standardizing on the official DeepSeek V4 path before routing only a small slice of work to premium fallback models.

Independent developers who care about cost discipline but still want a clean official direct-access positioning.

Buyers who want to start with DeepSeek and only expand into GPT, Claude, Gemini, or others when the use case demands it.

When To Choose It

When it belongs on your shortlist

When cost, attention, and practical developer usability matter more than defaulting to the most premium general-purpose option.

When you are building a content funnel around V4 traffic, side-by-side comparisons, and a direct sales handoff.

When DeepSeek is the first offer and broader multi-model access is the later upsell.

Discounted Official API Key

Get this official API key at a discount

If DeepSeek is already the right fit, move directly into the DeepSeek direct-access offer and use the Contact page to confirm delivery details and support scope.

View Discounted Plans Contact Sales for DeepSeek V4 View the DeepSeek Access Plan