# GPT-5.5 Pro vs Laguna M.1

> GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 32.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-5-pro-vs-laguna-m-1
- Last updated: 2026-10-12
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where GPT-5.5 Pro leads 84.0 to 21.1.
- GPT-5.5 Pro accepts more context: 1.05M tokens versus 262K.
- Laguna M.1 has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Pro | Laguna M.1 |
|---|---|---|
| Provider | OpenAI | Poolside |
| Noometry Index | 64.3 | 32.5 |
| Rank | 8 | 256 |
| Context | 1.05M | 262K |
| Input $/M | $30 | — |
| Output $/M | $180 | — |
| Weights | Proprietary | Open |

## Coding

- GPT-5.5 Pro: —
- Laguna M.1: 36.6 (#204)

| Benchmark | GPT-5.5 Pro | Laguna M.1 |
|---|---|---|
| LMArena WebDev | — | 1349 |

## Reasoning

- GPT-5.5 Pro: 73.3 (#10)
- Laguna M.1: 23.1 (#184)

| Benchmark | GPT-5.5 Pro | Laguna M.1 |
|---|---|---|
| ARC-AGI-2 | 84.6% | — |
| SimpleBench | 76.9% | — |
| ARC-AGI-1 | 96.5% | — |
| CritPt | 30.6% | — |
| Chess Puzzles | 64% | — |
| DTBench | 96% | — |
| LMCA | 53.9% | — |
| Surface Evolver Bench | — | 15.6% |
| Epoch Capabilities Index | 162.07 | — |

## Math

- GPT-5.5 Pro: 84.0 (#10)
- Laguna M.1: 21.1 (#283)

| Benchmark | GPT-5.5 Pro | Laguna M.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 87.7% | — |
| FrontierMath Tier 4 | 78% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | — | 0% |
| FrontierMath (Feb 2025 set) | 52.4% | — |
| FrontierMath Tier 4 (v1) | 39.6% | — |

## Knowledge

- GPT-5.5 Pro: 64.1 (#19)
- Laguna M.1: —

| Benchmark | GPT-5.5 Pro | Laguna M.1 |
|---|---|---|
| GPQA Diamond | 93.9% | — |

## FAQ

### Is GPT-5.5 Pro better than Laguna M.1?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 32.5 on the Noometry Index.

### Which has the bigger context window?

GPT-5.5 Pro does, with 1.05M tokens against 262K.

### How many benchmarks do GPT-5.5 Pro and Laguna M.1 share?

0 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and Laguna M.1 has 3.