DeepSeek V4 ProDeepSeekChat
DeepSeek's open-weight flagship 1.6T MoE model with hybrid sparse attention, 1M-token context, competition-grade coding (LiveCodeBench 93.5), and ultra-low pricing — built for code, reasoning, and long-horizon agents.
DeepSeek
DeepSeek APIs for V4 Pro & V4 Flash
Build reasoning systems, coding agents, and efficient language workflows with the DeepSeek models currently available through LinkModel.
Provider overview
About DeepSeek
DeepSeek develops open language-model families for reasoning, coding, and agentic work. The V4 family combines thinking and non-thinking modes with long-context and tool-use capabilities; V4 Pro emphasizes maximum capability, while V4 Flash emphasizes speed and efficiency. LinkModel only presents models that appear in its live catalog.
Explore DeepSeek language and reasoning APIs
Choose V4 Pro for the most demanding reasoning, coding, and agent work, or V4 Flash for fast, efficient production. This catalog only shows DeepSeek models currently available through LinkModel.
2 models listed
DeepSeek language, reasoning, and coding APIs
Compare live DeepSeek models for advanced reasoning, software engineering, tool use, long-context work, and efficient high-volume language tasks.
DeepSeek V4 Pro
DeepSeek V4 FlashDeepSeekChat
DeepSeek's open-source efficiency-tier flagship — 284B MoE with 13B active parameters, 1M context, dual thinking/non-thinking modes, priced at a fraction of closed frontier models for top price-performance.
Compare DeepSeek models and API pricing
Start with DeepSeek V4 Pro for the hardest reasoning, coding, and agent workflows, or V4 Flash when speed and cost efficiency matter most. Recommendations only appear when the matching model is live in LinkModel's catalog.
DeepSeek language, reasoning, and coding APIs
Best for
DeepSeek's capability-focused V4 tier for advanced reasoning, software engineering, tool use, and demanding agent workflows.
PricingView pricing
Best for
DeepSeek's efficient V4 tier for responsive applications and high-volume workloads that still need reasoning and tool use.
PricingView pricing
What can you build with DeepSeek APIs on LinkModel?
Use the live DeepSeek family for software engineering, analytical workloads, tool-driven agents, and responsive production automation from one account.
Software engineering agents
Build coding assistants and autonomous engineering workflows that can reason about code, call tools, and complete multi-step tasks.
Research and analytical work
Analyze long material, solve technical problems, and produce structured outputs with the live DeepSeek model that fits the required depth and latency.
High-volume production automation
Power responsive assistants, extraction, classification, and tool-driven business workflows while balancing quality, speed, and cost.
Why run DeepSeek models through LinkModel?
Access supported DeepSeek models alongside other leading providers while keeping credentials, usage, and billing in one workflow.
One key across live DeepSeek models
Use one LinkModel API key for the supported DeepSeek models enabled in the live catalog.
DeepSeek alongside other providers
Compare or combine DeepSeek with other language models without maintaining a separate provider account and billing workflow.
Centralized usage and billing
Review token usage and pay-as-you-go charges in one LinkModel account while selecting the right DeepSeek tier for each workload.
Integrate DeepSeek APIs
Use one LinkModel credential to select a live DeepSeek model, send the matching request, and monitor usage from the same account.
Authenticate with one API key
Create a LinkModel API key and use it to authenticate requests for the DeepSeek models enabled for your account.
Choose a live DeepSeek model
Select V4 Pro, V4 Flash, or another listed model and open its page to confirm the current identifier, request schema, and pricing.
Send, observe, and iterate
Submit the request, handle the language or tool response, and review usage before moving the workflow into production.
DeepSeek model guides
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DeepSeek V4 Pro vs Flash: Which Should You Actually Use?
2026-07-10
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How to Use the DeepSeek API for Free (or Nearly Free) in 2026
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How to Use LinkModel in DeepSeek Harness
2026-08-17
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Claude vs DeepSeek: Premium Judgment or Rock-Bottom Cost?
2026-07-10
FAQ
Frequently asked questions.
Sources and editorial information
Editorial review
Model capabilities and selection guidance are reviewed against the official DeepSeek sources listed here.
Editorial content reviewed: September 1, 2026
DeepSeek and its model names belong to their respective owners. LinkModel is an independent API aggregation platform and does not imply a formal relationship.