GPT-5 Pro vs o1 Pro
GPT-5 Pro vs o1 Pro: GPT-5 Pro is cheaper for input-heavy usage ($15.00/M vs $150.00/M input tokens), while GPT-5 Pro is better for long-context tasks (200,000 tokens).
Direct answer: choose GPT-5 Pro for lower token spend and choose GPT-5 Pro 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-5 Pro
o1 Pro
Cost Differences
o1 Pro costs more than GPT-5 Pro
Quick Recommendation
Winner for direct API pricing: GPT-5 Pro. At the default workload, GPT-5 Pro saves about $1,125.00/month ($13,687.50/year) versus o1 Pro.
Feature Comparison
| Feature | GPT-5 Pro | o1 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $15.00/1M tokens | $150.00/1M tokens |
| Output Price | $120.00/1M tokens | $600.00/1M tokens |
| Context Window | 200,000 tokens | 200,000 tokens |
| Max Output | 100,000 tokens | 100,000 tokens |
| Category | flagship | flagship |
| Capabilities | textvisioncodereasoning | textvisioncodereasoning |
| Release Date | 8/7/2025 | 12/17/2024 |
GPT-5 Pro vs o1 Pro: Which Should You Choose?
Choosing between GPT-5 Pro and o1 Pro depends on your priorities: cost efficiency, context length, or raw capability. GPT-5 Pro is the more affordable option at $15.00/1M input tokens — 90% cheaper than o1 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 Pro would save you roughly $112,500.00/month compared to o1 Pro. For startups and indie developers, that difference can be significant.
Output costs matter too. GPT-5 Pro charges $120.00/1M output tokens vs $600.00 for o1 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5 Pro has the edge here at $120.00/1M 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 Pro when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
Choose o1 Pro when:
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
GPT-5 Pro
- • Input pricing: $15.00/M tokens
- • Output pricing: $120.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 100,000 tokens
Watch out for
- • Trade-offs are minor in this matchup.
o1 Pro
- • Input pricing: $150.00/M tokens
- • Output pricing: $600.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 100,000 tokens
Watch out for
- • Higher input cost than GPT-5 Pro
- • Higher output cost than GPT-5 Pro
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5 Pro (OpenAI)
o1 Pro (OpenAI)
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Sign Up for OpenAI →Frequently Asked Questions
Which is cheaper, GPT-5 Pro or o1 Pro?▼
What is the context window difference between GPT-5 Pro and o1 Pro?▼
Which model is better for AI Agent / Agentic Workflows?▼
Which model has better overall pricing for heavy usage?▼
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