o1 vs o4-mini
o1 vs o4-mini: o4-mini is cheaper for input-heavy usage ($1.10/M vs $15.00/M input tokens), while o4-mini is better for long-context tasks (2,000,000 tokens).
Direct answer: choose o4-mini for lower token spend and choose o4-mini 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)
o1
o4-mini
Cost Differences
o4-mini costs less than o1
Quick Recommendation
Winner for direct API pricing: o4-mini. At the default workload, o4-mini saves about $125.10/month ($1,522.05/year) versus o1.
Feature Comparison
| Feature | o1 | o4-mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $15.00/1M tokens | $1.10/1M tokens |
| Output Price | $60.00/1M tokens | $4.40/1M tokens |
| Context Window | 200,000 tokens | 2,000,000 tokens |
| Max Output | 65,536 tokens | 131,072 tokens |
| Category | reasoning | reasoning |
| Capabilities | textreasoning | textreasoningcode |
| Release Date | 9/12/2024 | 4/16/2025 |
o1 vs o4-mini: Which Should You Choose?
Choosing between o1 and o4-mini depends on your priorities: cost efficiency, context length, or raw capability. o4-mini is the more affordable option at $1.10/1M input tokens — 93% cheaper than o1. Meanwhile, o4-mini offers a significantly larger context window at 2,000,000 tokens vs 200,000 for o1.
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: o4-mini would save you roughly $12,510.00/month compared to o1. For startups and indie developers, that difference can be significant.
Output costs matter too. o1 charges $60.00/1M output tokens vs $4.40 for o4-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o4-mini has the edge here at $4.40/1M output tokens.
Best Use Cases
Choose o1 when:
- • You're already using OpenAI's API ecosystem
Choose o4-mini when:
- • Budget is a primary concern
- • You need a larger context window (2,000,000 tokens)
- • You need more capabilities (code)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
o1
- • Input pricing: $15.00/M tokens
- • Output pricing: $60.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 65,536 tokens
Watch out for
- • Higher input cost than o4-mini
- • Higher output cost than o4-mini
- • Smaller context window than o4-mini
o4-mini
- • Input pricing: $1.10/M tokens
- • Output pricing: $4.40/M tokens
- • Context window: 2,000,000 tokens
- • Max output: 131,072 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
o1 (OpenAI)
o4-mini (OpenAI)
Start using o1 today
Sign Up for OpenAI →Start using o4-mini today
Sign Up for OpenAI →Frequently Asked Questions
Which is cheaper, o1 or o4-mini?▼
What is the context window difference between o1 and o4-mini?▼
Which model is better for AI Chatbot?▼
Which model has better overall pricing for heavy usage?▼
Related Comparisons
Related Articles
Learn when to pick each model, then compare live pricing scenarios.