Codex Mini vs o1 Pro
Codex Mini vs o1 Pro: Codex Mini is cheaper for input-heavy usage ($1.50/M vs $150.00/M input tokens), while Codex Mini is better for long-context tasks (200,000 tokens).
Direct answer: choose Codex Mini for lower token spend and choose Codex 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)
Codex Mini
o1 Pro
Cost Differences
o1 Pro costs more than Codex Mini
Quick Recommendation
Winner for direct API pricing: Codex Mini. At the default workload, Codex Mini saves about $1,336.50/month ($16,260.75/year) versus o1 Pro.
Feature Comparison
| Feature | Codex Mini | o1 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $1.50/1M tokens | $150.00/1M tokens |
| Output Price | $6.00/1M tokens | $600.00/1M tokens |
| Context Window | 200,000 tokens | 200,000 tokens |
| Max Output | 32,768 tokens | 100,000 tokens |
| Category | efficient | flagship |
| Capabilities | textcodereasoning | textvisioncodereasoning |
| Release Date | 2/2/2026 | 12/17/2024 |
Codex Mini vs o1 Pro: Which Should You Choose?
Choosing between Codex Mini and o1 Pro depends on your priorities: cost efficiency, context length, or raw capability. Codex Mini is the more affordable option at $1.50/1M input tokens — 99% cheaper than o1 Pro.
These models target different tiers: Codex Mini is a efficient model while o1 Pro is flagship. This means they're optimized for different workloads. o1 Pro targets more demanding workloads, while Codex Mini provides a cost-effective option for everyday tasks.
Output costs matter too. Codex Mini charges $6.00/1M output tokens vs $600.00 for o1 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Codex Mini has the edge here at $6.00/1M output tokens.
Multimodal capabilities: o1 Pro supports vision (image inputs) while Codex Mini is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose Codex Mini when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose o1 Pro when:
- • You need more capabilities (vision)
- • You need longer outputs (up to 100,000 tokens)
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
Codex Mini
- • Input pricing: $1.50/M tokens
- • Output pricing: $6.00/M tokens
- • Context window: 200,000 tokens
- • Max output: 32,768 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 Codex Mini
- • Higher output cost than Codex Mini
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Codex Mini (OpenAI)
o1 Pro (OpenAI)
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