# Grok 4.1 Fast vs Olmo 3 32b Think

> Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 38.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-1-fast-vs-olmo-3-32b-think
- Last updated: 2026-10-12
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Grok 4.1 Fast scores higher in 5 categories and Olmo 3 32b Think in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 25.9.
- Olmo 3 32b Think has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| Provider | xAI | Allen Institute for AI (Ai2) |
| Noometry Index | 41.4 | 38.7 |
| Rank | 136 | 183 |
| Context | 128K | — |
| Input $/M | $0.20 | — |
| Output $/M | $0.50 | — |
| Weights | Proprietary | Open |

## Coding

- Grok 4.1 Fast: 34.1 (#245)
- Olmo 3 32b Think: 38.6 (#172)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Coding | 1411 | 1319 |
| LMArena WebDev | 1242 | — |
| ALE-Bench | 394.93 | — |

## Agentic & Tool Use

- Grok 4.1 Fast: 36.3 (#39)
- Olmo 3 32b Think: —

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |

## Reasoning

- Grok 4.1 Fast: 43.4 (#49)
- Olmo 3 32b Think: 25.9 (#140)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1302 |
| SimpleBench | 56% | — |
| NYT Connections (extended) | 87.4% | — |
| DTBench | 87.7% | — |
| ForecastBench | 61 | — |

## Math

- Grok 4.1 Fast: 31.9 (#221)
- Olmo 3 32b Think: 36.5 (#165)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Math | 1408 | 1316 |
| MathArena Final-Answer Competitions | 60.9% | — |
| ProofBench | 4% | — |

## Knowledge

- Grok 4.1 Fast: 33.1 (#207)
- Olmo 3 32b Think: 35.0 (#190)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Expert | 1399 | 1273 |
| Vectara Hallucination Rate | 17.8% | — |

## Multimodal

- Grok 4.1 Fast: 37.0 (#76)
- Olmo 3 32b Think: —

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Vision | 1201 | — |

## Multilingual

- Grok 4.1 Fast: 51.0 (#114)
- Olmo 3 32b Think: 41.2 (#210)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Non-English | 1391 | 1255 |
| LMArena Chinese | 1441 | 1300 |
| LMArena French | 1415 | 1291 |
| LMArena German | 1404 | 1290 |
| LMArena Russian | 1387 | 1254 |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1361 | — |
| LMArena Spanish | 1413 | — |

## Instruction Following

- Grok 4.1 Fast: 72.7 (#133)
- Olmo 3 32b Think: 67.2 (#198)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Instruction Following | 1376 | 1275 |

## Long Context

- Grok 4.1 Fast: 42.4 (#126)
- Olmo 3 32b Think: 39.4 (#182)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Longer Query | 1390 | 1296 |

## Writing & Preference

- Grok 4.1 Fast: 57.2 (#131)
- Olmo 3 32b Think: 49.1 (#193)

| Benchmark | Grok 4.1 Fast | Olmo 3 32b Think |
|---|---|---|
| LMArena Text | 1408 | 1300 |
| LMArena Creative Writing | 1394 | 1256 |
| LMArena Multi-Turn | 1389 | 1290 |
| EQ-Bench Creative Writing | 1327 | — |

## FAQ

### Is Grok 4.1 Fast better than Olmo 3 32b Think?

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 38.7 on the Noometry Index.

### Is Grok 4.1 Fast or Olmo 3 32b Think better for coding?

Olmo 3 32b Think scores higher on coding benchmarks: 38.6 versus 34.1 in the Noometry coding category.

### How many benchmarks do Grok 4.1 Fast and Olmo 3 32b Think share?

14 benchmarks have published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Olmo 3 32b Think has 14.