GPT-5.4 Pro vs o3 Deep Research
Compare OpenAI and OpenAI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-5.4 Pro
o3 Deep Research
Cost Differences
o3 Deep Research costs less than GPT-5.4 Pro
Feature Comparison
| Feature | GPT-5.4 Pro | o3 Deep Research |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $30.00/1M tokens | $10.00/1M tokens |
| Output Price | $180.00/1M tokens | $40.00/1M tokens |
| Context Window | 1,050,000 tokens | 200,000 tokens |
| Max Output | 131,072 tokens | 32,768 tokens |
| Category | reasoning | reasoning |
| Capabilities | textvisioncodereasoning | textreasoningvisioncode |
| Release Date | 3/6/2026 | 6/26/2025 |
GPT-5.4 Pro vs o3 Deep Research: Which Should You Choose?
Choosing between GPT-5.4 Pro and o3 Deep Research depends on your priorities: cost efficiency, context length, or raw capability. o3 Deep Research is the more affordable option at $10.00/1M input tokens — 67% cheaper than GPT-5.4 Pro. Meanwhile, GPT-5.4 Pro offers a significantly larger context window at 1,050,000 tokens vs 200,000 for o3 Deep Research.
Both models are in the reasoning category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: o3 Deep Research would save you roughly $27,000.00/month compared to GPT-5.4 Pro. For startups and indie developers, that difference can be significant.
Output costs matter too. GPT-5.4 Pro charges $180.00/1M output tokens vs $40.00 for o3 Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o3 Deep Research has the edge here at $40.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose GPT-5.4 Pro when:
- • You need a larger context window (1,050,000 tokens)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using OpenAI's API ecosystem
Choose o3 Deep Research when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5.4 Pro (OpenAI)
o3 Deep Research (OpenAI)
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