# GPT-5.1-Codex vs Palm 2

> GPT-5.1-Codex is the stronger model overall, scoring 38.2 to 29.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gpt-5-1-codex-vs-palm-2
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in coding, where GPT-5.1-Codex leads 41.7 to 28.5.

## Snapshot

| | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| Provider | OpenAI | Google |
| Noometry Index | 38.2 | 29.4 |
| Rank | 178 | 296 |
| Context | 400K | — |
| Input $/M | $1.25 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-5.1-Codex: 41.7 (#107)
- Palm 2: 28.5 (#306)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| SWE-bench Verified (bash only) | 66% | — |
| LMArena WebDev | 1337 | — |
| LMArena Coding | — | 995 |
| ALE-Bench | 1,245 | — |

## Agentic & Tool Use

- GPT-5.1-Codex: 37.8 (#32)
- Palm 2: —

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| Terminal-Bench | 60.4% | — |
| METR Time Horizons | 70.8% | — |

## Reasoning

- GPT-5.1-Codex: —
- Palm 2: 18.2 (#270)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Hard Prompts | — | 1005 |

## Math

- GPT-5.1-Codex: 29.3 (#218)
- Palm 2: 28.4 (#229)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| ProofBench | 9% | — |
| LMArena Math | — | 1049 |

## Multilingual

- GPT-5.1-Codex: —
- Palm 2: 21.1 (#290)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Non-English | — | 916 |
| LMArena Chinese | — | 887 |

## Instruction Following

- GPT-5.1-Codex: —
- Palm 2: 51.3 (#291)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Instruction Following | — | 1010 |

## Long Context

- GPT-5.1-Codex: —
- Palm 2: 30.7 (#280)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Longer Query | — | 1010 |

## Writing & Preference

- GPT-5.1-Codex: —
- Palm 2: 25.7 (#299)

| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Text | — | 1027 |
| LMArena Creative Writing | — | 991 |
| LMArena Multi-Turn | — | 994 |

## FAQ

### Is GPT-5.1-Codex better than Palm 2?

GPT-5.1-Codex is the stronger model overall, scoring 38.2 to 29.4 on the Noometry Index.

### Is GPT-5.1-Codex or Palm 2 better for coding?

GPT-5.1-Codex scores higher on coding benchmarks: 41.7 versus 28.5 in the Noometry coding category.

### How many benchmarks do GPT-5.1-Codex and Palm 2 share?

0 benchmarks have published results for both models. GPT-5.1-Codex has 6 scored results on Noometry and Palm 2 has 10.