Model comparison
GPT-5.1-Codex vs Palm 2
GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 30.0 on the Noometry Index.
Last verified . 0 shared benchmarks.
GoogleSummary
- The widest gap is in coding, where GPT-5.1-Codex leads 41.9 to 29.0.
Side by side
| GPT-5.1-Codex | Palm 2 | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 38.6 | 30.0 |
| Released | 2025-11-12 | — |
| Weights | Proprietary | Proprietary |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 6 | 10 |
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Category by category
Coding GPT-5.1-Codex leads
GPT-5.1-Codex: 41.9 (#116), Palm 2: 29.0 (#311)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| SWE-bench Verified (bash only) | 66% | — |
| LMArena WebDev | 1337 | — |
| LMArena Coding | — | 994 |
| ALE-Bench | 1,245 | — |
Agentic & Tool Use Not comparable
GPT-5.1-Codex: 38.0 (#33), Palm 2: —
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| Terminal-Bench | 60.4% | — |
| METR Time Horizons | 70.8% | — |
Reasoning Not comparable
GPT-5.1-Codex: —, Palm 2: 19.1 (#271)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Hard Prompts | — | 1005 |
Math Too close to call
GPT-5.1-Codex: 30.3 (#235), Palm 2: 30.8 (#231)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| ProofBench | 9% | — |
| LMArena Math | — | 1049 |
Multilingual Not comparable
GPT-5.1-Codex: —, Palm 2: 20.9 (#295)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Non-English | — | 916 |
| LMArena Chinese | — | 887 |
Instruction Following Not comparable
GPT-5.1-Codex: —, Palm 2: 51.0 (#296)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Instruction Following | — | 1010 |
Long Context Not comparable
GPT-5.1-Codex: —, Palm 2: 30.8 (#285)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Longer Query | — | 1010 |
Writing & Preference Not comparable
GPT-5.1-Codex: —, Palm 2: 25.6 (#304)
| Benchmark | GPT-5.1-Codex | Palm 2 |
|---|---|---|
| LMArena Text | — | 1027 |
| LMArena Creative Writing | — | 991 |
| LMArena Multi-Turn | — | 994 |
Frequently asked questions
Is GPT-5.1-Codex better than Palm 2?
GPT-5.1-Codex is the stronger model overall, scoring 38.6 to 30.0 on the Noometry Index.
Is GPT-5.1-Codex or Palm 2 better for coding?
GPT-5.1-Codex scores higher on coding benchmarks: 41.9 versus 29.0 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.