DeepSeek R2

4.80
Official Site API / Console
Open-source specialized reasoning model, with MATH benchmark test scores comparable to GPT-4o, released under the MIT open-source license.
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CompanyDeepSeek
Context128K
Released2025-05
Updated2026-07-20

DeepSeek R2 Overview

DeepSeek is a free AI assistant developed by DeepSeek Artificial Intelligence Research Institute, based in Hangzhou, China. Built on the philosophy of “high performance, low cost, and open source,” DeepSeek has quickly gained global recognition since its launch in 2025.

Technically, DeepSeek features a 1-million-token context window, capable of processing text volumes equivalent to the entire Three-Body Problem trilogy at once. It supports advanced reasoning, code generation, multi-format file processing (TXT, PDF, PPT, Word, Excel), and a unique image recognition capability that goes beyond OCR to understand spatial relationships and visual context.

DeepSeek serves a wide range of users: students use it for learning programming and mathematics; professionals rely on it for copywriting, data analysis, and productivity; developers leverage its open-source nature for custom applications; and senior users appreciate its clean, ad-free interface for daily inquiries.

Key features include being completely free for end users, open-sourced model weights, a minimalist design with no distractions, and cross-platform support (Web, Android, iOS, Harmony). DeepSeek aims to make powerful AI accessible to everyone.

DeepSeek R2 Pricing

PlanPriceDescription
API Reasoning Mode Input: $0.55 / Output: $2.19 per 1M tokens (reference) High-performance reasoning mode designed for complex tasks. Supports a 128K-token context window, with caching benefits and Batch discounts available. Ideal for code generation, mathematical reasoning, advanced analysis, and other demanding AI workloads.
API Chat Mode Input: $0.14 / Output: $0.28 per 1M tokens (reference) Cost-efficient chat mode optimized for everyday conversations and content generation. Suitable for AI assistants, customer support, text processing, and high-volume applications.
Web Chat Access Free Use DeepSeek’s official web chat experience at no cost. No subscription required, making it easy for individual users to explore the model’s capabilities.
Batch / Off-Peak Discounts Up to 50–75% savings (depending on platform policies) Additional discounts may be available for batch processing and off-peak usage. Best suited for large-scale data processing and non-real-time AI workflows.

DeepSeek R2 Key Features

1. Significantly Enhanced Logical Reasoning – The core upgrade of R2 is "stronger logical reasoning," particularly demonstrating more stable performance in multi-step reasoning, mathematics, and complex problem solving.
2. Superior Programming Capabilities – Compared to R1, R2 is more optimized for developer scenarios, evolving from merely "writing code" to "assisting in modifying code like a seasoned engineer."
3. Higher Efficiency (Lower Costs) – Sticking to the key strength of the DeepSeek series, R2 continues and amplifies the emphasis on cost-effectiveness.
4. Enhanced Long-Context Comprehension – R2 further improves its ability to process long or complex text inputs.
5. More Balanced Multilingual Proficiency
6. Better Architectural Design (Balancing Efficiency and Performance)

Summary

1. Programming Development / AI Coding Assistant
2. Complex Logic Analysis / Reasoning Tasks
3. AI Automation Workflows
4. Long-Form Text Processing (Knowledge-Based Work)
5. Teaching / Tutoring (STEM-Oriented)

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AWritten & Reviewed by Last verified 2026-07-20
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DeepSeek Model Comparison

Model Context Pricing API Released Global Heat
DeepSeek R2
128K Freemium YES 2025-05
96/100
DeepSeek V4 Pro 0813
1M — YES 2026-08
96/100
DeepSeek V4 Flash Vision Exp
1M — YES 2026-08 —
DeepSeek V4 Flash 0731
1M — YES 2026-07
87/100
DeepSeek V4 Pro(Legacy)
1M — NO 2026-04
90/100

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