OpenAIo4Oct 10, 2025
O4 Mini Deep Research
o4-mini-deep-research is OpenAI's faster, more affordable deep research model—ideal for tackling complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost.
Context Window
200K
tokens
Max Output
200K
tokens
Released
Oct 10, 2025
Arena Rank
—
Output Speed
168
tokens/sec
Time to First Token
12.5s
TTFT
Capabilities
👁Vision
🧠Reasoning
🔧Tool Calling
⚡Prompt Caching
🖥Computer Use
🎨Image Generation
Supported Parameters
Frequency Penalty
Reduce repetition
Include Reasoning
Show reasoning tokens
Logit Bias
Adjust token weights
Log Probs
Token probabilities
Max Tokens
Output length limit
Presence Penalty
Encourage new topics
Reasoning
Extended thinking
Response Format
JSON mode / structured output
Seed
Deterministic outputs
Stop Sequences
Custom stop tokens
structured_outputs
Temperature
Controls randomness
Tool Choice
Control tool usage
Tool Calling
Function calling support
top_logprobs
Top P
Nucleus sampling
Pricing Comparison
| Router | Input / 1M | Output / 1M | Cached Input / 1M |
|---|---|---|---|
| Requesty★ | $2.00 | $8.00 | $0.50 |
| OpenRouter | $2.00 | $8.00 | $0.50 |
| Martian | $2.00 | $8.00 | $0.50 |
Benchmarks
Artificial Analysis
Intelligence IndexArtificial Analysis
80/100Coding IndexArtificial Analysis
74/100Math IndexArtificial Analysis
95/100MMLU-PROArtificial Analysis
0.832/1GPQA DiamondArtificial Analysis
0.812/1MATH-500Artificial Analysis
0.985/1AIME 2024Artificial Analysis
0.93/1Humanity's Last ExamArtificial Analysis
0.195/1LiveCodeBenchArtificial Analysis
0.785/1SciCodeArtificial Analysis
0.458/1Model IDs
Requesty
openai/o4-mini-deep-researchOpenRouter
openai/o4-mini-deep-researchTags
visionreasoningtool-callingcaching