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DeepSeek: DeepSeek V4 Pro 0423

by DeepSeek

8.9
Quality score / 10

Overview

DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window. It is designed for advanced reasoning, coding,...

Our take

Within the growing field of large reasoning models, DeepSeek V4 Pro stakes out the high-capability end of DeepSeek's own lineup. It is a Mixture-of-Experts model with 1.6T total parameters and 49B activated, paired with a 1,048,576-token context window, built for advanced reasoning, coding and demanding multi-step work. A concrete use is loading a large technical corpus or codebase into that context window and having it reason through a hard problem with chain-of-thought, calling tools and returning structured JSON your systems can parse. It is text-only, so image input is off the table. Against the general Claude, ChatGPT and Gemini assistants it is listed beside, this is a specific frontier release rather than a consumer chat product, and unlike DeepSeek's own efficiency-tuned Flash variant it prioritizes reasoning depth over raw speed, priced at $0.43 per million tokens with no free tier. That price keeps it well below premium options like Claude Sonnet 5 despite its scale. Ideal for research and engineering teams who want frontier-level reasoning and a large context at a moderate cost and do not need vision. Choose it when depth on hard reasoning and coding tasks matters most; drop to the Flash variant if throughput and lower cost outweigh peak capability, or pick a vision model if you need image input.

How DeepSeek: DeepSeek V4 Pro 0423 stacks up

Among the 376 chatbots & llms tools in our directory, it ranks #80 of 371 on quality (8.9/10), 11% above the 371-tool average of 8.0, and its $0.9553/1M input-token rate is in the premium end — 50% cheaper than the 360-model average of $1.93/1M.

Weighing quality against cost, DeepSeek: DeepSeek V4 Pro 0423's cost-per-quality-point of $0.11 places it at #226 of 351 for value among chatbots & llms tools.

DeepSeek: DeepSeek V4 Pro 0423 in depth

DeepSeek: DeepSeek V4 Pro 0423, built by DeepSeek, sits in the chatbots & llms space and is a paid tool starting at $0.96/1M tokens. Our editors rate it 8.9 out of 10 based on capability, ecosystem and value. It handles a context window of 1,048,576 tokens.

On the feature side, DeepSeek: DeepSeek V4 Pro 0423 brings 1,048,576-token context window, reasoning / chain-of-thought, tool / function calling and structured (json) outputs. These are the capabilities that most shape day-to-day use and separate it from thinner alternatives.

Its biggest strength is large 1,048,576-token context window, bigger than most models listed here, while the main trade-off to weigh is that no free tier — usage is billed per token. Keep both in mind when deciding whether it fits your workflow.

DeepSeek: DeepSeek V4 Pro 0423 is most often chosen for research and writing. If that matches your goals, it's a strong candidate to shortlist.

Speed
—
Context window
1,048,576 tokens
Free tier
No
Updated
2026-09-29

Key features

  • ✓1,048,576-token context window
  • ✓Reasoning / chain-of-thought
  • ✓Tool / function calling
  • ✓Structured (JSON) outputs

Pricing

$0.96/1M tokens
Pay per token
Paid$0.96/1M tokens
API input
$0.9553 / 1M tokens
API output
$1.9105 / 1M tokens
See full API pricing → llmprice.app

Pros

  • +Large 1,048,576-token context window, bigger than most models listed here
  • +Built-in reasoning (chain-of-thought) mode for harder problems
  • +Supports tool / function calling for agent-style workflows
  • +Can return structured JSON output for reliable parsing

Cons

  • −No free tier — usage is billed per token
  • −Text-only: does not accept image input

Who should use DeepSeek: DeepSeek V4 Pro 0423

  • →Anyone looking for a chatbots & llms tool from DeepSeek.
  • →Teams and individuals focused on research and writing.
  • →People who value large 1,048,576-token context window, bigger than most models listed here.
  • →Workflows that need a 1,048,576 tokens context window.

Who should look elsewhere

  • →Anyone who needs a free tier — this tool is paid only.
  • →Those for whom no free tier — usage is billed per token is a dealbreaker.
  • →Users who can't accept that text-only: does not accept image input.

Best for

10 Best DeepSeek: DeepSeek V4 Pro 0423 Alternatives in 2026

DeepSeek: DeepSeek V4 Pro 0423 is a strong chatbots & llms tool, but it is not the only option. Whether you are after a lower price, different features or a better fit for your workflow, here are the 10 best alternatives to DeepSeek: DeepSeek V4 Pro 0423, ranked and compared.

1
ClaudeFree tier$20/mo

Anthropic

Claude is Anthropic's family of AI assistants, known for long-context reasoning, careful writing and strong coding…

+ Best-in-class long-document reasoning+ Natural, high-quality writing+ Strong safety and reliability
Read full Claude review →
2
ChatGPTFree tier$20/mo

OpenAI

ChatGPT is OpenAI's flagship conversational AI, powering hundreds of millions of weekly users across web, mobile and…

+ Most polished and widely supported ecosystem+ Excellent general reasoning and coding+ Huge third-party integration support
Read full ChatGPT review →
3
GeminiFree tier$20/mo

Google DeepMind

Gemini is Google's natively multimodal model family, deeply integrated across Search, Workspace, Android and the Pixel…

+ Massive context window+ Tight integration with Google ecosystem+ Generous free access
Read full Gemini review →
4
Anthropic: Claude Sonnet 5.5Paid$2.00/1M tokens

Anthropic

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a…

+ Large 1,000,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems+ Accepts images as input (vision-capable)
Read full Anthropic: Claude Sonnet 5.5 review →
5
Fireworks: Ember-1Paid$3.00/1M tokens

Fireworks

Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi…

+ Large 1,048,576-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems+ Accepts images as input (vision-capable)
Read full Fireworks: Ember-1 review →
6
Qwen: Qwen3.8 Max PrimePaid$4.00/1M tokens

Qwen

Qwen3.8 Max Prime is a higher-throughput variant of Qwen3.8 Max from Alibaba's Qwen team, served as a separate SKU at a…

+ Large 1,000,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems+ Accepts images as input (vision-capable)
Read full Qwen: Qwen3.8 Max Prime review →
7
Space Bunny AlphaFree tierFree

Stealth

Space Bunny Alpha is an anonymous large model with blazing-fast inference, strong coding capabilities and native…

+ Completely free to use via the OpenRouter API+ Large 1,000,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems
Read full Space Bunny Alpha review →
8
OpenAI: GPT-6 Luna ProPaid$0.10/1M tokens

OpenAI

GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with…

+ Low API price — $0.1 per 1M input tokens, cheaper than roughly 75% of comparable models+ Large 1,050,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems
Read full OpenAI: GPT-6 Luna Pro review →
9
OpenAI: GPT-6 LunaPaid$0.10/1M tokens

OpenAI

GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol.

+ Low API price — $0.1 per 1M input tokens, cheaper than roughly 75% of comparable models+ Large 1,050,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems
Read full OpenAI: GPT-6 Luna review →
10
OpenAI: GPT-6 Sol ProPaid$2.00/1M tokens

OpenAI

GPT-6 Sol Pro is the same underlying model as [GPT-6 Sol](https://openrouter.ai/openai/gpt-6-sol), served with…

+ Large 1,050,000-token context window, bigger than most models listed here+ Built-in reasoning (chain-of-thought) mode for harder problems+ Accepts images as input (vision-capable)
Read full OpenAI: GPT-6 Sol Pro review →

DeepSeek: DeepSeek V4 Pro 0423 vs top alternatives

A side-by-side look at how DeepSeek: DeepSeek V4 Pro 0423 stacks up against its closest rivals.

FeatureDeepSeek: DeepSeek V4 Pro 0423DeepSeekClaudeAnthropicChatGPTOpenAIGeminiGoogle DeepMind
Quality score8.9 / 109.6 / 109.5 / 109.2 / 10
Starting price$0.96/1M tokens$20/mo$20/mo$20/mo
Free tierNoYes — Free tier availableYes — Free tier availableYes — Free tier available
API input price$0.9553 / 1M tokens$2 / 1M tokens$0.1 / 1M tokens$0.75 / 1M tokens
API output price$1.9105 / 1M tokens$10 / 1M tokens$0.5 / 1M tokens$3.75 / 1M tokens
Speed—FastFastFast
Context window1,048,576 tokens200K tokens128K tokens1M-2M tokens
CategoriesChatbots & LLMsChatbots & LLMs, Coding, WritingChatbots & LLMs, Coding, WritingChatbots & LLMs, Coding, Writing
Key features
  • 1,048,576-token context window
  • Reasoning / chain-of-thought
  • Tool / function calling
  • Structured (JSON) outputs
  • Industry-leading long context (200K+ tokens)
  • Artifacts for live previews
  • Strong agentic coding (Claude Code)
  • Vision and document analysis
  • Multimodal text, image and voice input
  • Advanced data analysis (code interpreter)
  • Custom GPTs and GPT Store
  • Web browsing and real-time search
  • Up to 2M token context window
  • Deep Google Workspace integration
  • Native video and audio understanding
  • Real-time Google Search grounding
Pros
  • + Large 1,048,576-token context window, bigger than most models listed here
  • + Built-in reasoning (chain-of-thought) mode for harder problems
  • + Supports tool / function calling for agent-style workflows
  • + Can return structured JSON output for reliable parsing
  • + Best-in-class long-document reasoning
  • + Natural, high-quality writing
  • + Strong safety and reliability
  • + Most polished and widely supported ecosystem
  • + Excellent general reasoning and coding
  • + Huge third-party integration support
  • + Massive context window
  • + Tight integration with Google ecosystem
  • + Generous free access
Cons
  • − No free tier — usage is billed per token
  • − Text-only: does not accept image input
  • − No native image generation
  • − Fewer consumer integrations than ChatGPT
  • − Usage caps on the most capable models
  • − Can be verbose and overly cautious
  • − Quality can be inconsistent on edge cases
  • − Privacy concerns for some users

Frequently asked questions

Q. Is DeepSeek: DeepSeek V4 Pro 0423 free?

No — DeepSeek: DeepSeek V4 Pro 0423 is a paid tool, starting at $0.96/1M tokens.

Q. How much does DeepSeek: DeepSeek V4 Pro 0423 cost?

DeepSeek: DeepSeek V4 Pro 0423 starts at $0.96/1M tokens. API usage is around $0.9553 per 1M input tokens and $1.9105 per 1M output tokens.

Q. What is DeepSeek: DeepSeek V4 Pro 0423 best for?

DeepSeek: DeepSeek V4 Pro 0423 is best suited to research and writing, within the chatbots & llms category.

Q. What are the best DeepSeek: DeepSeek V4 Pro 0423 alternatives?

Popular alternatives to DeepSeek: DeepSeek V4 Pro 0423 include Claude, ChatGPT, Gemini and Anthropic: Claude Sonnet 5.5. Each trades off price, quality and ecosystem differently.

Q. Is there a free alternative to DeepSeek: DeepSeek V4 Pro 0423?

Yes. Claude, ChatGPT, Gemini offer a free tier, making them good starting points if you want to avoid an upfront subscription.

Q. Why switch from DeepSeek: DeepSeek V4 Pro 0423?

Common reasons include pricing, specific feature gaps (No free tier — usage is billed per token; Text-only: does not accept image input), data-privacy requirements, or simply wanting a tool that fits your stack better.

How we rate AI tools

Our quality score weighs capability on real tasks, breadth of features and integrations, pricing and value, and how actively the tool is maintained. Scores are editorial guidance, not benchmarks — always trial a tool on your own workflow before committing. Pricing and features change frequently, so verify current details on the official site.

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