DeepSeek 3.1: Hybrid reasoning, longer context and new pricing

DeepSeek 3.1 introduces hybrid reasoning capabilities, extended context length, and new competitive pricing that makes advanced AI more accessible.

Maria Garcia
By Maria Garcia

25 Aug 2025

5 min read

DeepSeek 3.1: Hybrid reasoning, longer context and new pricing

Key Features of DeepSeek V3.1

  • Hybrid Reasoning: Combines multiple reasoning approaches for better problem-solving
  • Extended Context: Support for longer conversations and documents
  • Competitive Pricing: More affordable than previous versions
  • Improved Performance: Better accuracy and response quality
  • Enhanced Multilingual Support: Better understanding across languages

Hybrid Reasoning Technology

The new hybrid reasoning system combines:

  1. Chain-of-Thought: Step-by-step logical reasoning
  2. Tree-of-Thought: Exploring multiple solution paths
  3. Reflection: Self-correcting and validation mechanisms
  4. Tool Integration: Seamless use of external tools and APIs

Impact: This hybrid approach results in more accurate and reliable responses, especially for complex problem-solving tasks.

Extended Context Capabilities

DeepSeek V3.1 now supports:

  • Up to 128K tokens in a single conversation
  • Better memory of earlier parts of long conversations
  • Improved handling of large documents and codebases
  • Enhanced context understanding across multiple turns

New Pricing Structure

The updated pricing makes DeepSeek V3.1 more accessible:

  • Input tokens: $0.14 per 1M tokens
  • Output tokens: $0.28 per 1M tokens
  • Free tier: 1M tokens per month
  • Enterprise plans: Custom pricing for high-volume usage

Use Cases and Applications

DeepSeek V3.1 is particularly well-suited for:

  1. Code Generation: Writing and debugging complex code
  2. Data Analysis: Processing and interpreting large datasets
  3. Research: Analyzing long documents and papers
  4. Problem Solving: Complex reasoning and decision-making tasks
  5. Content Creation: Long-form writing and editing

Getting Started

To start using DeepSeek V3.1:

  1. Visit the DeepSeek website
  2. Sign up for an account
  3. Choose your plan (free tier available)
  4. Access the API or use the web interface
  5. Start building with the new capabilities

This release represents a significant step forward in making advanced AI reasoning capabilities more accessible and affordable for developers and businesses worldwide.

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