Model comparison
GPT-5.5 Instant vs Granite 4.0 Micro
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 29.0 on the Noometry Index.
Last verified . 3 shared benchmarks.
Summary
- They share 3 benchmarks with published results for both. GPT-5.5 Instant scores higher in 5 categories and Granite 4.0 Micro in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where GPT-5.5 Instant leads 48.9 to 9.9.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 68.1% for GPT-5.5 Instant and 2.8% for Granite 4.0 Micro.
- Granite 4.0 Micro has downloadable open weights; the other is API-only.
Side by side
| GPT-5.5 Instant | Granite 4.0 Micro | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 42.7 | 29.0 |
| Released | 2026-05-05 | 2025-10-02 |
| Weights | Proprietary | Open |
| Context window | — | 131K |
| Max output | — | 118K |
| Input $ / M tokens | — | $0.017 |
| Output $ / M tokens | — | $0.11 |
| Results tracked | 27 | 8 |
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Category by category
Coding Not comparable
GPT-5.5 Instant: 44.3 (#74), Granite 4.0 Micro: —
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| SciCode | 48.6% | — |
| LMArena Coding | 1433 | — |
Reasoning GPT-5.5 Instant leads
GPT-5.5 Instant: 24.9 (#155), Granite 4.0 Micro: 19.2 (#265)
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| Chess Puzzles | 12% | 0% |
| CritPt | 0% | — |
| LMArena Hard Prompts | 1426 | — |
| Epoch Capabilities Index | 142.52 | — |
Math GPT-5.5 Instant leads
GPT-5.5 Instant: 26.5 (#259), Granite 4.0 Micro: 12.0 (#307)
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 68.1% | 2.8% |
| FrontierMath (Tiers 1-3) | 26.3% | — |
| FrontierMath Tier 4 | 2.4% | — |
| Omni-MATH | — | 20.9% |
| LMArena Math | 1420 | — |
Knowledge GPT-5.5 Instant leads
GPT-5.5 Instant: 48.9 (#74), Granite 4.0 Micro: 9.9 (#304)
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| GPQA Diamond | 82.5% | 28.3% |
| MMLU-Pro | — | 39.5% |
| GPQA (HELM) | — | 30.7% |
| LMArena Expert | 1409 | — |
Multimodal Not comparable
GPT-5.5 Instant: 40.0 (#52), Granite 4.0 Micro: —
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| LMArena Vision | 1250 | — |
| LMArena Document | 1403 | — |
Multilingual Not comparable
GPT-5.5 Instant: 52.8 (#80), Granite 4.0 Micro: —
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| LMArena Non-English | 1417 | — |
| LMArena Chinese | 1456 | — |
| LMArena French | 1428 | — |
| LMArena German | 1411 | — |
| LMArena Japanese | 1408 | — |
| LMArena Korean | 1392 | — |
| LMArena Russian | 1431 | — |
| LMArena Spanish | 1429 | — |
Instruction Following GPT-5.5 Instant leads
GPT-5.5 Instant: 74.2 (#100), Granite 4.0 Micro: 69.9 (#169)
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| IFEval | — | 84.9% |
| LMArena Instruction Following | 1406 | — |
Long Context Not comparable
GPT-5.5 Instant: 43.4 (#96), Granite 4.0 Micro: —
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| LMArena Longer Query | 1422 | — |
Writing & Preference GPT-5.5 Instant leads
GPT-5.5 Instant: 61.8 (#85), Granite 4.0 Micro: 46.7 (#216)
| Benchmark | GPT-5.5 Instant | Granite 4.0 Micro |
|---|---|---|
| LMArena Text | 1419 | — |
| LMArena Creative Writing | 1419 | — |
| WildBench | — | 67% |
| LMArena Multi-Turn | 1433 | — |
Frequently asked questions
Is GPT-5.5 Instant better than Granite 4.0 Micro?
GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 29.0 on the Noometry Index.
How many benchmarks do GPT-5.5 Instant and Granite 4.0 Micro share?
3 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Granite 4.0 Micro has 8.