R1 0528 vs o3 Deep Research (Comparative Analysis)
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Comparative Analysis: R1 0528 vs. o3 Deep Research
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Overview
R1 0528 was released 4 months before o3 Deep Research.
 R1 0528 |  o3 Deep Research | |
|---|---|---|
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 | 200K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 32.8K tokens | 100K tokens |
Release Date When this model first became publicly available | May 28, 2025 1 year ago May 28th, 2025 | October 10, 2025 9 months ago October 10th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | March 31, 2025 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
R1 0528 | o3 Deep Research | |
|---|---|---|
Input Types Supported input formats | 📝Text | 🖼️Image📝Text📁File |
Reasoning Controls Defaults and configurable reasoning effort | Always enabled | 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
R1 0528 is roughly 0.05x less expensive compared to o3 Deep Research for input tokens and roughly 0.05x less expensive for output tokens.
| R1 0528 | o3 Deep Research | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.50 per million tokens | $10.00 per million tokens |
Output Token Cost Cost per million output tokens | $2.15 per million tokens | $40.00 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 | $0.35 per million tokens | $2.50 per million tokens |
Benchmarks
Compare relevant benchmarks between R1 0528 and o3 Deep Research.
| R1 0528 | o3 Deep Research | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,208 Elo (#44 in Data Viz (60.7% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes R1 0528 and o3 Deep Research unique.
R1 0528 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. Reasonably priced at $0.50/M input and $2.15/M output tokens. Released May 28th, 2025.o3 Deep Research 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. Premium pricing at $10.00/M input and $40.00/M output tokens. Includes built-in content moderation for safer outputs. Released October 10th, 2025.Explore More Comparisons
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