Model comparison
GPT-5.2 Codex vs Granite 4.1 8b
GPT-5.2 Codex is the stronger model overall, scoring 42.6 to 37.4 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. GPT-5.2 Codex scores higher in 1 category and Granite 4.1 8b in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in coding, where GPT-5.2 Codex leads 45.5 to 30.1.
- Granite 4.1 8b has downloadable open weights; the other is API-only.
Side by side
| GPT-5.2 Codex | Granite 4.1 8b | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 42.6 | 37.4 |
| Released | 2025-12-18 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 5 | 13 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding GPT-5.2 Codex leads
GPT-5.2 Codex: 45.5 (#71), Granite 4.1 8b: 30.1 (#297)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena WebDev | 1339 | 1192 |
| SWE-bench Verified (bash only) | 72.8% | — |
| SWE-bench Multilingual | 66.3% | — |
| LMArena Coding | — | 1312 |
| ALE-Bench | 1,300 | — |
Agentic & Tool Use Not comparable
GPT-5.2 Codex: 41.0 (#22), Granite 4.1 8b: —
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| Terminal-Bench | 66.5% | — |
Reasoning Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 25.7 (#143)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Hard Prompts | — | 1293 |
Math Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 36.4 (#166)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Math | — | 1312 |
Knowledge Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 36.1 (#174)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Expert | — | 1309 |
Multilingual Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 41.7 (#204)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Non-English | — | 1261 |
| LMArena Chinese | — | 1337 |
| LMArena Russian | — | 1240 |
Instruction Following Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 66.9 (#203)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Instruction Following | — | 1269 |
Long Context Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 38.7 (#193)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Longer Query | — | 1275 |
Writing & Preference Not comparable
GPT-5.2 Codex: —, Granite 4.1 8b: 48.1 (#204)
| Benchmark | GPT-5.2 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Text | — | 1290 |
| LMArena Creative Writing | — | 1251 |
| LMArena Multi-Turn | — | 1268 |
Frequently asked questions
Is GPT-5.2 Codex better than Granite 4.1 8b?
GPT-5.2 Codex is the stronger model overall, scoring 42.6 to 37.4 on the Noometry Index.
Is GPT-5.2 Codex or Granite 4.1 8b better for coding?
GPT-5.2 Codex scores higher on coding benchmarks: 45.5 versus 30.1 in the Noometry coding category.
How many benchmarks do GPT-5.2 Codex and Granite 4.1 8b share?
1 benchmark has published results for both models. GPT-5.2 Codex has 5 scored results on Noometry and Granite 4.1 8b has 13.