GPT-4o vs o4-mini Deep Research
GPT-4o vs o4-mini Deep Research: o4-mini Deep Research is cheaper for input-heavy usage ($2.00/M vs $2.50/M input tokens), while o4-mini Deep Research is better for long-context tasks (200,000 tokens).
Direct answer: choose o4-mini Deep Research for lower token spend and choose o4-mini Deep Research when your workload needs longer context.
Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-4o
o4-mini Deep Research
Cost Differences
o4-mini Deep Research costs less than GPT-4o
Quick Recommendation
Winner for direct API pricing: o4-mini Deep Research. At the default workload, o4-mini Deep Research saves about $4.50/month ($54.75/year) versus GPT-4o.
Feature Comparison
| Feature | GPT-4o | o4-mini Deep Research |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $2.50/1M tokens | $2.00/1M tokens |
| Output Price | $10.00/1M tokens | $8.00/1M tokens |
| Context Window | 128,000 tokens | 200,000 tokens |
| Max Output | 16,384 tokens | 32,768 tokens |
| Category | flagship | reasoning |
| Capabilities | textvisionaudio | textreasoningcode |
| Release Date | 5/13/2024 | 6/26/2025 |
GPT-4o vs o4-mini Deep Research: Which Should You Choose?
Choosing between GPT-4o and o4-mini Deep Research depends on your priorities: cost efficiency, context length, or raw capability. o4-mini Deep Research is the more affordable option at $2.00/1M input tokens — 20% cheaper than GPT-4o. Meanwhile, o4-mini Deep Research offers a significantly larger context window at 200,000 tokens vs 128,000 for GPT-4o.
These models target different tiers: GPT-4o is a flagship model while o4-mini Deep Research is reasoning. This means they're optimized for different workloads. GPT-4o is built for complex tasks that require deeper reasoning, while o4-mini Deep Research offers better value for routine operations.
Output costs matter too. GPT-4o charges $10.00/1M output tokens vs $8.00 for o4-mini Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o4-mini Deep Research has the edge here at $8.00/1M output tokens.
Multimodal capabilities: GPT-4o supports vision (image inputs) while o4-mini Deep Research is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose GPT-4o when:
- • You're already using OpenAI's API ecosystem
Choose o4-mini Deep Research when:
- • Budget is a primary concern
- • You need a larger context window (200,000 tokens)
- • You need longer outputs (up to 32,768 tokens)
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
GPT-4o
- • Input pricing: $2.50/M tokens
- • Output pricing: $10.00/M tokens
- • Context window: 128,000 tokens
- • Max output: 16,384 tokens
Watch out for
- • Higher input cost than o4-mini Deep Research
- • Higher output cost than o4-mini Deep Research
- • Smaller context window than o4-mini Deep Research
o4-mini Deep Research
- • Input pricing: $2.00/M tokens
- • Output pricing: $8.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 32,768 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-4o (OpenAI)
o4-mini Deep Research (OpenAI)
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