Complex coding work
Use it for repository-scale reasoning, debugging, implementation planning, and code review where several files or constraints must stay consistent.
Official release verified · April 24, 2026
DeepSeek V4 Pro Max Online
DeepSeek V4 Pro Max is the deepseek-v4-pro model with thinking enabled at maximum reasoning effort. Explore its coding, reasoning, long-context, and agent capabilities, compare every V4 mode, and check when live access becomes available on Dreammmer.
Dreammmer is an independent product, not the official DeepSeek website. The model has been officially released, but our live provider is not connected yet. No prompt is sent from the preview below.
DeepSeek V4 Pro Max chat
Planned runtime: deepseek-v4-pro · Think Max
Reasoning mode
Think Max
Deepest reasoning
Think High
Balanced depth
Non-think
Fast answers
The input will be enabled after the provider model ID, request format, limits, and output behavior are verified.
Best-fit tasks
Debug complex codeSolve hard reasoningAnalyze long documentsPlan tool workflows
Max reasoning can improve difficult answers, but it does not guarantee correctness. Verify important code, calculations, and decisions.
DeepSeek response
Once the verified provider is connected, the real answer, model ID, and runtime mode will appear here. This preview does not simulate a response.
What it is built for
Why users search for DeepSeek V4 Pro Max
The Max setting is useful when answer quality matters more than latency. These are the tasks that best match the model's published design.
Hard, multi-step reasoning
Think Max allocates the strongest published reasoning setting to problems that benefit from deliberate analysis instead of the fastest first answer.
Long-context analysis
The official V4 API lists a 1M-token context window and up to 384K output, supporting large supplied documents and extended working context.
Agent and tool workflows
Tool calling, JSON output, and long context make V4 suitable for planning and executing structured multi-step workflows when an application supplies the tools.
DeepSeek V4 model family
DeepSeek V4 Pro, Pro Max, and Flash compared
“Pro Max” is a runtime configuration, not a separate official model ID. Choose the base model and then choose how much reasoning effort it should use.
Search nameOfficial configurationBest fit
DeepSeek V4 Pro Max
deepseek-v4-pro · Think Max
Hardest coding, reasoning, and agent tasks where depth matters most.
DeepSeek V4 Pro High
deepseek-v4-pro · Think High
Strong reasoning with a more practical balance of latency and cost.
DeepSeek V4 Pro
deepseek-v4-pro · Non-think
Fast general answers while keeping the larger Pro model.
DeepSeek V4 Flash Max
deepseek-v4-flash · Think Max
Deeper reasoning on the smaller, more efficient Flash model.
DeepSeek V4 Flash High
deepseek-v4-flash · Think High
Balanced reasoning for frequent coding and analysis tasks.
DeepSeek V4 Flash
deepseek-v4-flash · Non-think
Lowest-latency option for straightforward chat and extraction.
The provider we connect may expose these controls with different parameter names. The live page will show the actual model ID and mode used for every answer.
Confirmed model facts
What changed in DeepSeek V4
Release claims below come from DeepSeek's API documentation and model card. Independent evaluations should be read as separate evidence, not as official marketing claims.
Last verified: July 20, 2026
Release
DeepSeek announced V4 Preview on April 24, 2026 with Pro and Flash API models and three reasoning settings: non-thinking, high, and max.
Model scale
The official model card lists V4 Pro at 1.6T total parameters with 49B active, while V4 Flash has 284B total with 13B active.
Long context
Both official API variants list a 1M-token context window and a maximum output of 384K tokens, a major fit for large code and document tasks.
Developer features
Published API support includes JSON output, tool calls, Fill-in-the-Middle completion, and configurable thinking effort.
Continue exploring
Choose the model page that matches your task
DeepSeek V4 is aimed at text, code, reasoning, and agents. Dreammmer keeps image generation and other model experiences in separate, clearer workflows.
DeepSeek V4 Pro Max questions
What users need to know before trying it
The name, current access status, model differences, and practical limits in one place.
Is DeepSeek V4 Pro Max a separate model?
No. DeepSeek's official API model is deepseek-v4-pro. “Pro Max” means that model is used with thinking enabled and reasoning effort set to max.
Can I use DeepSeek V4 Pro Max on Dreammmer now?
Not yet. The official model exists, but Dreammmer has not connected a verified provider. The input is intentionally disabled and no prompt is sent.
What is the difference between DeepSeek V4 Pro and V4 Flash?
Pro is the larger model and is aimed at the most demanding work. Flash is smaller and designed for more efficient responses. Both officially list non-thinking, Think High, and Think Max modes.
Does DeepSeek V4 Pro Max generate images?
This page treats it as a text, coding, reasoning, and agent model. Dreammmer will not claim image generation unless the connected provider documents and verifies that capability.
Is Think Max always the best choice?
No. It is best reserved for difficult tasks where deeper reasoning justifies extra latency and cost. Non-thinking or Think High can be more practical for simpler requests.
Sources and verification
Official DeepSeek documentation supports the release, mode, context, and model claims. The NIST CAISI link provides an independent evaluation perspective.