Model comparison
Claude Haiku 5.5 vs o1-pro
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 31.5 on the Noometry Index.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in knowledge, where Claude Haiku 5.5 leads 50.8 to 29.7.
- Claude Haiku 5.5 is cheaper at $0.10 / $0.50 per million input/output tokens, against $150 / $600 for o1-pro.
- Claude Haiku 5.5 accepts more context: 1M tokens versus 200K.
Side by side
| Claude Haiku 5.5 | o1-pro | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Noometry Index | 49.5 | 31.5 |
| Released | 2026-10-07 | 2025-03-19 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 200K |
| Max output | 128K | 100K |
| Input $ / M tokens | $0.10 | $150 |
| Output $ / M tokens | $0.50 | $600 |
| Results tracked | 9 | 3 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Not comparable
Claude Haiku 5.5: 49.2 (#50), o1-pro: —
| Benchmark | Claude Haiku 5.5 | o1-pro |
|---|---|---|
| LMArena WebDev | 1587 | — |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), o1-pro: 20.4 (#239)
| Benchmark | Claude Haiku 5.5 | o1-pro |
|---|---|---|
| NYT Connections (extended) | 65.7% | — |
| ARC-AGI-1 | — | 23.3% |
| EnigmaEval | — | 6.1% |
| Mystery Game Puzzles | 30% | — |
Math Not comparable
Claude Haiku 5.5: 73.6 (#18), o1-pro: —
| Benchmark | Claude Haiku 5.5 | o1-pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), o1-pro: 29.7 (#234)
| Benchmark | Claude Haiku 5.5 | o1-pro |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| Humanity's Last Exam | — | 8.1% |
| SimpleQA Verified | 23.8% | — |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), o1-pro: —
| Benchmark | Claude Haiku 5.5 | o1-pro |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Frequently asked questions
Is Claude Haiku 5.5 better than o1-pro?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 31.5 on the Noometry Index.
Which is cheaper, Claude Haiku 5.5 or o1-pro?
Claude Haiku 5.5 is cheaper. It lists at $0.10 per million input tokens and $0.50 per million output tokens; o1-pro lists at $150 and $600.
Which has the bigger context window?
Claude Haiku 5.5 does, with 1M tokens against 200K.
How many benchmarks do Claude Haiku 5.5 and o1-pro share?
0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and o1-pro has 3.