DeepSeek V3.1 vs GPT-4 Turbo Preview (Comparative Analysis)
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Comparative Analysis: DeepSeek V3.1 vs. GPT-4 Turbo Preview
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Overview
GPT-4 Turbo Preview was released 1 year before DeepSeek V3.1.
 DeepSeek V3.1 |  GPT-4 Turbo Preview | |
|---|---|---|
Model Provider The organization behind this AI's development | DeepSeek | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 163.8K tokens | 128K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 32.8K tokens | 4.1K tokens |
Release Date When this model first became publicly available | August 21, 2025 11 months ago August 21st, 2025 | January 25, 2024 2 years ago January 25th, 2024 |
Knowledge Cutoff Latest training-data date reported by the provider | March 31, 2025 | December 31, 2023 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
DeepSeek V3.1 | GPT-4 Turbo Preview | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | DeepSeek | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured OutputReasoning Mode✓Content Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
DeepSeek V3.1 is roughly 0.03x less expensive compared to GPT-4 Turbo Preview for input tokens and roughly 0.03x less expensive for output tokens.
| DeepSeek V3.1 | GPT-4 Turbo Preview | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.25 per million tokens | $10.00 per million tokens |
Output Token Cost Cost per million output tokens | $0.95 per million tokens | $30.00 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.13 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between DeepSeek V3.1 and GPT-4 Turbo Preview.
| DeepSeek V3.1 | GPT-4 Turbo Preview | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,155 Elo (#69 in Website (48.0% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes DeepSeek V3.1 and GPT-4 Turbo Preview unique.
DeepSeek V3.1 by DeepSeek can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 163.8K token context window. Very affordable at $0.25/M input and $0.95/M output tokens. Released August 21st, 2025.GPT-4 Turbo Preview by OpenAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 128K token context window. Premium pricing at $10.00/M input and $30.00/M output tokens. Includes built-in content moderation for safer outputs. Released January 25th, 2024.Explore More Comparisons
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Compare GPT-4 Turbo Preview with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks