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DeepSeek V4 Pro API

DeepSeek-Text generation-from $0.442 / 1M input tokens-Available
1M context384K max outputThinking modeChat + Messages + Responses
API docs
Production routeLive
Provider
DeepSeek
Model
DeepSeek V4 Pro
Context window
1,000,000 tokens
Protocols
Chat + Messages + Responses

Choose DeepSeek V4 Pro

An evaluation route for coding, reasoning, and long-context analysis, available on Chat Completions, Messages, and Responses — use whichever protocol your stack already speaks.

DeepSeek V4 Pro

DeepSeek reasoning and tool-use model

Selected
From $0.442 / 1M input tokensdeepseek-v4-pro
Best for

High-volume coding, reasoning, long-document analysis, and agent workloads that need a low-cost route with cached-input pricing.

Input
$0.442 / 1M
30 cr / 1M
Cached input
$0.0045 / 1M
0.3 cr / 1M
Output
$0.883 / 1M
60 cr / 1M

DeepSeek V4 Pro pricing

Estimate uncached input, cached input, and output tokens together. Live prices for your user group override the contract-backed fallback rates.

DeepSeek V4 Pro

Request calculator

Enter uncached input, cached input, and output tokens.

Estimated request cost

DeepSeek V4 Pro
USD$0.0008
Credits0.0481
Uncached input tokens0.03 cr
Cached input tokens0.0001 cr
Output tokens0.018 cr

Budget guide

Approximate requests using the current mix.
Add credits
$10
About 14137 requests

For quick testing

$50
About 70686 requests

For regular development

$100
About 141372 requests

For production evaluation

Token rates

ModelPrompt tokensUncached input tokensCached input tokensOutput tokens
DeepSeek V4 Prodeepseek-v4-pro1M
$0.442 / 1M
30 cr / 1M
$0.0045 / 1M
0.3 cr / 1M
$0.883 / 1M
60 cr / 1M

USD and credits are shown per 1M tokens. Live prices for your user group override the fallback rates. Minimum total charge: 0.01 credits.

What is the DeepSeek V4 Pro API?

DeepSeek V4 Pro is DeepSeek’s strongest tier: a 1.6-trillion-parameter Mixture-of-Experts design with 49B active parameters per token, a 1M-token context window, 384K maximum output, and thinking mode enabled by default. On EvoLink it is available on both /v1/chat/completions (OpenAI style) and /v1/messages (Anthropic style) using the model ID deepseek-v4-pro. Review pricing boundaries, supported workflows, and model configuration in the Pricing and API sections below.

DeepSeek V4 Pro
EvoLink model IDdeepseek-v4-pro

Requests on Chat Completions, Messages, and Responses must use the exact model ID shown here.

Model specifications

Context window1,000,000 tokens
API protocolsChat Completions · Messages · Responses
Thinking modeOn by default
Max output384,000 tokens
Token billingInput · cached input · output
ProviderDeepSeek
Tasks and workflows

What is the DeepSeek V4 Pro API best suited for?

DeepSeek V4 Pro combines a 1M-token context window, configurable reasoning, and tool calling for work that must retain evidence, call external systems, and return verifiable results. The model is text-only — it does not accept image input. These use cases explain where it may add value and what to confirm before integration.

Repository-scale coding and code review

Keep relevant source files, issues, test results, and previous changes in one task for cross-file debugging, implementation planning, and review. Before rollout, use fixed repository tasks to check test pass rate, incomplete steps, structured results, and required human edits instead of judging coding ability from a single demo.

Long documents and multi-source analysis

The 1M-token context can hold reports, contracts, knowledge-base passages, conversation history, and retrieved sources together. More context does not automatically improve an answer, so verify that key evidence is preserved and use the live rates and cache-hit mechanics in Pricing to calculate cost per acceptable result.

Long-horizon agent and terminal workflows

The 0813 GA build sharply improved agentic coding and terminal-task performance, which is where community reports (a demand signal, not a verified benchmark) most often place V4 Pro’s value against closed models. Pair it with your own retrieval and execution tools through function calling, and validate multi-step task completion rates on your real workloads before scaling.

Structured output and agent orchestration

Text inputs can feed JSON Schema, function calling, and multi-step agent flows for extraction, review, and downstream automation. Before production use, test schema validity, function arguments, streaming completion events, and safe recovery after a tool failure.

API access choice

What changes when you access DeepSeek V4 Pro through different platforms?

Even with the same model, platforms can differ in context configuration, tool support, usage reporting, and billing. EvoLink puts model configuration and usage behind one API so later model changes remain straightforward.

Use the correct API model ID

deepseek-v4-pro is the page URL and a common search form; the API request model ID is deepseek-v4-pro. Existing Chat Completions or Responses applications can use the correct ID in model configuration, with exact fields available in the API section.

Follow the active API route configuration

DeepSeek documents a 1M-token model window, but platforms may expose different context settings, tools, and rate limits. When using EvoLink, rely on the model configuration, available features, and actual usage shown for the current route.

Choose Chat or Responses by workflow

Start with Chat Completions for standard chat, streaming, and client-side functions. Choose Responses — added with the 0813 build — for multi-step agent workflows and its documented server tools: function calling, web search, and apply_patch. Note that code interpreter is ignored on this route. This preserves a familiar OpenAI-style integration without adding complexity the workload does not need.

Keep model choice open in one gateway

Use one EvoLink account, balance, and API pattern for Grok, GPT, Claude, and Kimi. Keeping model selection in configuration lets teams route by task quality, cost, and availability without rebuilding application code for every provider.

Cost control

How can you control DeepSeek V4 Pro API cost more accurately?

The existing Pricing section shows current token rates (input, cache hit, output). In practice, caching, context management, reasoning settings, and model routing help reduce unnecessary usage and connect spend to completed business tasks.

Make repeated context cache-friendly

Stable system prompts, tool schemas, and shared context are easier to reuse through caching. Configure the supported cache or conversation identifier for the selected protocol and inspect cached tokens in usage to confirm that repeated requests receive the expected benefit.

Send only the context the task needs

A 1M-token window is useful for large repositories and documents, but it does not need to be filled on every request. Selecting only relevant files, messages, and retrieved passages reduces input cost and helps the model focus on the evidence that matters.

Tune reasoning, output, and tool calls by task

Start simple work with lower reasoning effort and shorter output, then increase the reasoning budget for harder analysis. Research and agent workflows should also track tool-call count to avoid repeated searches, executions, or unproductive loops.

Compare models by total task cost

Evaluate tokens, cached input, server tools, and required retries within the same completed task. EvoLink centralizes model and usage information so teams can compare the total cost of completing equivalent work across DeepSeek V4 Pro and other routes.

Production guidance

What should you confirm before using DeepSeek V4 Pro in production?

Start with a small set of real workloads to determine whether the model meets your quality, latency, cost, and reliability needs before deciding which traffic should move.

Integration and usage data are clear

Confirm that the application uses the correct deepseek-v4-pro model ID and intended protocol, and that required responses, usage, and cache information are returned. Clear usage data supports cost analysis and gives Chat and Responses workflows a consistent observation method.

Outputs meet real business requirements

Test real code changes, long-document analysis, research, or structured extraction. Beyond answer quality, check whether tests pass, citations are reliable, function arguments are correct, and JSON Schema output can be consumed directly by downstream systems.

Latency and error handling meet expectations

Observe response time under representative traffic and prepare retry behavior for rate limits, timeouts, invalid structured output, and tool failures. Configurable model selection in EvoLink makes it easier to switch to a verified alternative when one route is temporarily unavailable.

Cost and model choice remain controllable

Use Pricing, usage, and final charges to calculate total cost for the same class of task, then decide whether DeepSeek V4 Pro belongs on the default route, difficult tasks, or fallback traffic. A unified gateway keeps quality and budget decisions separate from integration work.

Begin with a small, observable, reversible set of DeepSeek V4 Pro tasks. Expand only after quality, latency, and cost meet expectations. Keeping multiple model options behind the EvoLink unified API makes later scaling, switching, and cost optimization easier.

Protocol and routing choice

How should you choose Chat Completions, Responses, and production traffic?

The two protocols serve different workflows. This is a selection summary; use the existing API section and EvoLink documentation for exact request fields, and the existing Pricing section for token rates; count tool-call rounds into total task cost when budgeting.

01

Standard chat and client functions: Chat Completions

If you already use OpenAI-compatible chat, streaming, or client-side function calling, start with Chat Completions. Confirm message format, streaming completion, function arguments, and usage against what the current client expects.

Chat and client functions
02

Agent workflows: Responses

Evaluate the Responses API — added in the 0813 build — for longer multi-step agent flows and Codex-style integrations. Confirm supported request fields, failure states, and retry boundaries against the current EvoLink documentation before integration.

Agent workflows
03

Large-context work: watch cache and total cost together

Long documents, repositories, and conversations should not automatically put everything into one request. Compare representative context sizes, cache hits and misses, output length, and retries, then use the final charge to calculate successful-task cost.

Context cost
04

Production traffic: start small and keep a fallback

Send a small, observable set of tasks to DeepSeek V4 Pro first and retain a proven GPT, Claude, or Kimi route. EvoLink’s unified API centralizes model choice, usage, and balance, making it easier to change routes after rate limits, timeouts, schema errors, or tool failures.

Gradual rollout

Related models

GPT-5.6

GPT-5.6

OpenAI’s tiered frontier family for comparing capability, latency, and cost-routing flexibility.

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Claude Opus 5

Claude Opus 5

Anthropic’s premium route for long-running agents, tool use, and complex review.

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Kimi K3

Kimi K3

Moonshot’s long-context reasoning route with a separate cached-input rate.

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DeepSeek V4 Flash

DeepSeek V4 Flash

DeepSeek’s cost-sensitive open-model route for high-volume coding, reasoning, and agent workloads.

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Related guides

How to use the DeepSeek V4 Pro API

How to use the DeepSeek V4 Pro API

First call, thinking-effort control, the Claude Code switch, and three migration pitfalls that silently fail.

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DeepSeek V4 Pro 0813 is live: what changed

DeepSeek V4 Pro 0813 is live: what changed

The GA build’s agent and Codex changes, verified against upstream documentation.

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DeepSeek V4 API review: Flash vs Pro

DeepSeek V4 API review: Flash vs Pro

Compare the two V4 tiers on cost, thinking mode, and a production rollout checklist.

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DeepSeek V4 vs GPT-5.4 vs Claude Opus 4.6

DeepSeek V4 vs GPT-5.4 vs Claude Opus 4.6

Official pricing and capability comparison across three frontier routes.

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DeepSeek V4 Pro API FAQ

Is the DeepSeek V4 Pro API available through EvoLink now?

Yes. DeepSeek V4 Pro is live on the EvoLink production route. Send requests with the model ID deepseek-v4-pro on Chat Completions or Responses, and check the model ID, pricing, context, and supported workflows on this page before scaling up.

Is deepseek-v4-pro the API model ID?

Yes. The model ID you send in the request is deepseek-v4-pro — the same string as this page URL. Since August 13, 2026, that unchanged ID serves the upgraded 0813 GA build automatically; you do not change the ID to get the new build.

What changed in the DeepSeek V4 Pro 0813 build?

The 0813 GA build (released August 13, 2026) substantially improved agentic coding and terminal-task benchmarks over the April preview and added Responses API support. The callable model ID stays deepseek-v4-pro. The old aliases deepseek-chat and deepseek-reasoner were retired upstream on July 24, 2026.

What inputs and outputs does DeepSeek V4 Pro support?

Text input and text output only — DeepSeek V4 Pro has no vision capability on any protocol. On the Messages route, image and document content types are rejected; on Responses, image and file attachments are converted to placeholders rather than understood. Route screenshot or document-understanding tasks to a vision-capable model on the same EvoLink gateway.

Should I use Chat Completions or the Responses API?

Use Chat Completions for familiar chat, streaming, and client function flows. Evaluate Responses — added in the 0813 build — for longer-running agent workflows. The current API section and EvoLink docs remain the source for exact request fields and verified route support.

How should reasoning effort be selected?

Valid tiers are low, high, and max, and the default is high — medium is accepted but silently maps to high, so comparing medium against high produces no real difference. Start with low for routine work, compare low and high on the same tasks, and reserve max for the hardest problems where a failed attempt costs more than the extra reasoning tokens.

How do cached input and long agent loops affect DeepSeek V4 Pro pricing?

Cached input can reduce repeated-context cost, while cache misses, long outputs, retries, and repeated tool steps can make an agent loop more expensive than the headline input rate suggests. Use the live Pricing section and final request charges when calculating cost per accepted task.

What are the DeepSeek V4 Pro rate limits?

There is no per-token RPM or TPM limit upstream. The constraint is an account-level concurrency cap — around 500 concurrent requests for the Pro tier — with 429 returned beyond it and requests dropped after roughly 10 minutes of queueing. Keep in-flight requests below your measured ceiling, use exponential backoff, and route bulk steps to DeepSeek V4 Flash, whose cap is about five times higher.

How should teams compare DeepSeek V4 Pro with GPT, Claude, or Kimi?

Run the same real tasks with consistent context, tools, and reasoning settings. Compare result quality, response time, token mix, tool performance, and total cost to decide which EvoLink route fits each traffic class.

Is DeepSeek V4 Pro open source?

The April Preview weights are MIT-licensed on Hugging Face; the 0813 GA build’s weights had not been published as of August 13, 2026. Open weights and the hosted API are independent access paths — the EvoLink route serves the hosted API, and the same MIT weights being available elsewhere is what makes third-party-host fallback possible.

Is there a DeepSeek V4 Pro Max model?

No. There is no separate “Pro Max” model — “max” is the top thinking-effort tier on the same deepseek-v4-pro model ID. If you see “Pro-Max” mentioned, it refers to running this model at maximum reasoning effort, not a different product.

What fallback should teams keep during rollout?

Keep a model that already handles the same workload reliably and leave route selection configurable. If rate limits, timeouts, or invalid output occur, EvoLink can route to GPT, Claude, Kimi, or another suitable alternative.