Model comparison
o1-preview vs o3-pro
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: o1-preview #123 (Supported); o3-pro #127 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. o1-preview and o3-pro share 1 comparable benchmark result. 0 of 8 categories are comparable. 1 result is unique to o1-preview; 1 to o3-pro.
Updated July 20, 2026- Shared results
- 1
- o1-preview only
- 1
- o3-pro only
- 1
- Comparable categories
- 0 / 8
Benchmark data for o1-preview and o3-pro is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
o3-pro is priced at $20.00 input / $80.00 output per 1M tokens, versus $15.00 input / $60.00 output per 1M tokens for o1-preview.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | o1-preview | o3-pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | o1-preview$15 input / $60 output | o3-pro$20 input / $80 output | o1-preview has the lower combined listed price. |
| Generation speedtokens per second | o1-previewNot available | o3-pro27 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | o1-previewNot available | o3-pro84.93 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | o1-preview200K | o3-pro200K | Listed context windows are equal. |
Benchmark Deep Dive
Frequently Asked Questions (3)
Can I compare o1-preview and o3-pro on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for o1-preview and o3-pro today?
o1-preview: $15.00 input / $60.00 output per 1M tokens o3-pro: $20.00 input / $80.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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