DeepSeek V3.1 Terminus vs GPT-4.1 Mini (Comparative Analysis)
Loading comparison form...
Comparative Analysis: DeepSeek V3.1 Terminus vs. GPT-4.1 Mini
Want to try out these models side by side?Try Magica for free
Overview
GPT-4.1 Mini was released 5 months before DeepSeek V3.1 Terminus.
 DeepSeek V3.1 Terminus |  GPT-4.1 Mini | |
|---|---|---|
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 | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 32.8K tokens | 32.8K tokens |
Release Date When this model first became publicly available | September 22, 2025 10 months ago September 22nd, 2025 | April 14, 2025 1 year ago April 14th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | March 31, 2025 | June 30, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
DeepSeek V3.1 Terminus | GPT-4.1 Mini | |
|---|---|---|
Input Types Supported input formats | 📝Text | 🖼️Image📝Text📁File |
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 Terminus is roughly 0.7x less expensive compared to GPT-4.1 Mini for input tokens and roughly 0.6x less expensive for output tokens.
| DeepSeek V3.1 Terminus | GPT-4.1 Mini | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.27 per million tokens | $0.40 per million tokens |
Output Token Cost Cost per million output tokens | $1.00 per million tokens | $1.60 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.14 per million tokens | $0.10 per million tokens |
Benchmarks
Compare relevant benchmarks between DeepSeek V3.1 Terminus and GPT-4.1 Mini.
| DeepSeek V3.1 Terminus | GPT-4.1 Mini | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 30.4 (Artificial Analysis index; higher is better) | 14.8 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 43.5 (Artificial Analysis index; higher is better) | 20.2 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 18.1 (Artificial Analysis index; higher is better) | 1.7 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,220 Elo (#41 in UI Component (59.3% win rate)) | 1,129 Elo (#77 in Game Dev (58.5% win rate)) |
At a Glance
Quick overview of what makes DeepSeek V3.1 Terminus and GPT-4.1 Mini unique.
DeepSeek V3.1 Terminus 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 $0.27/M input and $1.00/M output tokens. Released September 22nd, 2025.GPT-4.1 Mini by OpenAI understands both text and images, can use external tools and APIs, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.40/M input and $1.60/M output tokens. Includes built-in content moderation for safer outputs. Released April 14th, 2025.Explore More Comparisons
Compare your models with top performers across different categories
Compare DeepSeek V3.1 Terminus 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
Compare GPT-4.1 Mini 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