Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-5.4
GPT-5 Pro
Cost Differences
GPT-5 Pro costs more than GPT-5.4
Feature Comparison
| Feature | GPT-5.4 | GPT-5 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $2.50/1M tokens | $15.00/1M tokens |
| Output Price | $15.00/1M tokens | $120.00/1M tokens |
| Context Window | 1,050,000 tokens | 200,000 tokens |
| Max Output | 131,072 tokens | 100,000 tokens |
| Category | flagship | flagship |
| Capabilities | textvisioncodereasoning | textvisioncodereasoning |
| Release Date | 3/6/2026 | 8/7/2025 |
GPT-5.4 vs GPT-5 Pro: Which Should You Choose?
Choosing between GPT-5.4 and GPT-5 Pro depends on your priorities: cost efficiency, context length, or raw capability. GPT-5.4 is the more affordable option at $2.50/1M input tokens — 83% cheaper than GPT-5 Pro. Meanwhile, GPT-5.4 offers a significantly larger context window at 1,050,000 tokens vs 200,000 for GPT-5 Pro.
Both models are in the flagship category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: GPT-5.4 would save you roughly $19,500.00/month compared to GPT-5 Pro. For startups and indie developers, that difference can be significant.
Output costs matter too. GPT-5.4 charges $15.00/1M output tokens vs $120.00 for GPT-5 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5.4 has the edge here at $15.00/1M 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 when:
- • Budget is a primary concern
- • 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 GPT-5 Pro when:
- • 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 (OpenAI)
GPT-5 Pro (OpenAI)
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