DeepSeek V4 Flash vs o4 Mini (Comparative Analysis)
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Comparative Analysis: DeepSeek V4 Flash vs. o4 Mini
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Overview
o4 Mini was released 1 year before DeepSeek V4 Flash.
 DeepSeek V4 Flash |  o4 Mini | |
|---|---|---|
Model Provider The organization behind this AI's development | DeepSeek | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens | 100K tokens |
Release Date When this model first became publicly available | April 24, 2026 2 months ago April 24th, 2026 | April 16, 2025 1 year ago April 16th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | June 30, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
DeepSeek V4 Flash | o4 Mini | |
|---|---|---|
Input Types Supported input formats | 📝Text | 🖼️Image📝Text📁File |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Extra High, HighDefault: High | Optional |
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 Output✓Reasoning Mode✓Content Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
DeepSeek V4 Flash is roughly 0.09x less expensive compared to o4 Mini for input tokens and roughly 0.05x less expensive for output tokens.
| DeepSeek V4 Flash | o4 Mini | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.10 per million tokens | $1.10 per million tokens |
Output Token Cost Cost per million output tokens | $0.20 per million tokens | $4.40 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 | $0.02 per million tokens | $0.28 per million tokens |
Benchmarks
Compare relevant benchmarks between DeepSeek V4 Flash and o4 Mini.
| DeepSeek V4 Flash | o4 Mini | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 40.3 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 56.2 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 31.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,260 Elo (#31 in 3D (49.9% win rate)) | 1,061 Elo (#87 in Game Dev (50.0% win rate)) |
At a Glance
Quick overview of what makes DeepSeek V4 Flash and o4 Mini unique.
DeepSeek V4 Flash by DeepSeek can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.10/M input and $0.20/M output tokens. Released April 24th, 2026.o4 Mini by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Reasonably priced at $1.10/M input and $4.40/M output tokens. Includes built-in content moderation for safer outputs. Released April 16th, 2025.Explore More Comparisons
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Compare o4 Mini with:
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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