# GPT-5.5 Instant vs Olmo 2 0325 32b Instruct

> GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 32.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-5-instant-vs-olmo-2-0325-32b-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 11

## Summary

- They share 11 benchmarks with published results for both. GPT-5.5 Instant scores higher in 7 categories and Olmo 2 0325 32b Instruct in 1 category; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.5 Instant leads 48.9 to 19.5.
- Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 42.7 | 32.7 |
| Rank | 110 | 254 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- GPT-5.5 Instant: 44.3 (#74)
- Olmo 2 0325 32b Instruct: 35.2 (#227)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Coding | 1433 | 1210 |
| SciCode | 48.6% | — |

## Reasoning

- GPT-5.5 Instant: 24.9 (#155)
- Olmo 2 0325 32b Instruct: 23.6 (#175)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1426 | 1208 |
| CritPt | 0% | — |
| Chess Puzzles | 12% | — |
| Epoch Capabilities Index | 142.52 | — |

## Math

- GPT-5.5 Instant: 26.5 (#259)
- Olmo 2 0325 32b Instruct: 26.8 (#255)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Math | 1420 | 1208 |
| FrontierMath (Tiers 1-3) | 26.3% | — |
| FrontierMath Tier 4 | 2.4% | — |
| OTIS Mock AIME 2024-2025 | 68.1% | — |
| Omni-MATH | — | 16.1% |

## Knowledge

- GPT-5.5 Instant: 48.9 (#74)
- Olmo 2 0325 32b Instruct: 19.5 (#279)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| GPQA Diamond | 82.5% | — |
| MMLU-Pro | — | 41.4% |
| GPQA (HELM) | — | 28.7% |
| LMArena Expert | 1409 | — |

## Multimodal

- GPT-5.5 Instant: 40.0 (#52)
- Olmo 2 0325 32b Instruct: —

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Vision | 1250 | — |
| LMArena Document | 1403 | — |

## Multilingual

- GPT-5.5 Instant: 52.8 (#80)
- Olmo 2 0325 32b Instruct: 34.8 (#248)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Non-English | 1417 | 1160 |
| LMArena Chinese | 1456 | 1192 |
| LMArena Russian | 1431 | 1187 |
| LMArena French | 1428 | — |
| LMArena German | 1411 | — |
| LMArena Japanese | 1408 | — |
| LMArena Korean | 1392 | — |
| LMArena Spanish | 1429 | — |

## Instruction Following

- GPT-5.5 Instant: 74.2 (#100)
- Olmo 2 0325 32b Instruct: 61.5 (#244)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1406 | 1186 |
| IFEval | — | 78% |

## Long Context

- GPT-5.5 Instant: 43.4 (#96)
- Olmo 2 0325 32b Instruct: 36.2 (#234)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1422 | 1194 |

## Writing & Preference

- GPT-5.5 Instant: 61.8 (#85)
- Olmo 2 0325 32b Instruct: 42.1 (#236)

| Benchmark | GPT-5.5 Instant | Olmo 2 0325 32b Instruct |
|---|---|---|
| LMArena Text | 1419 | 1218 |
| LMArena Creative Writing | 1419 | 1199 |
| LMArena Multi-Turn | 1433 | 1221 |
| WildBench | — | 73.4% |

## FAQ

### Is GPT-5.5 Instant better than Olmo 2 0325 32b Instruct?

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 32.7 on the Noometry Index.

### Is GPT-5.5 Instant or Olmo 2 0325 32b Instruct better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 35.2 in the Noometry coding category.

### How many benchmarks do GPT-5.5 Instant and Olmo 2 0325 32b Instruct share?

11 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.