o3 Deep Research vs o4 Mini High
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for o3 Deep Research and o4 Mini High.
o3 Deep Research
o3-deep-research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost.
o4 Mini High
OpenAI o4-mini-high is the same model as [o4-mini](/openai/o4-mini) with reasoning_effort set to high. OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining...
Technical Specifications
| Specification | o3 Deep Research | o4 Mini High |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Window | 200,000 tokens | 200,000 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-10-10 | 2025-04-16 |
API Pricing Comparison
Input Price per Million Tokens
o3 Deep Research
$10.00
o4 Mini High
$1.10
Output Price per Million Tokens
o3 Deep Research
$40.00
o4 Mini High
$4.40
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
o3 Deep Research Quirks & Gotchas
No developer gotchas reported.
o4 Mini High Quirks & Gotchas
No developer gotchas reported.