Model comparison
Granite 3.1 8b Instruct vs Step 5 Preview
Step 5 Preview is the stronger model overall, scoring 43.8 to 31.8 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in reasoning, where Step 5 Preview leads 38.0 to 21.2.
- Granite 3.1 8b Instruct has downloadable open weights; the other is API-only.
Side by side
| Granite 3.1 8b Instruct | Step 5 Preview | |
|---|---|---|
| Provider | IBM | StepFun |
| Noometry Index | 31.8 | 43.8 |
| Released | — | 2026-09-16 |
| Weights | Open | Proprietary |
| Context window | — | 1.02M |
| Max output | — | 66K |
| Input $ / M tokens | — | $1 |
| Output $ / M tokens | — | $2.70 |
| Results tracked | 13 | 3 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Step 5 Preview leads
Granite 3.1 8b Instruct: 33.9 (#232), Step 5 Preview: 50.6 (#40)
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena WebDev | — | 1569 |
| SciCode | — | 58.9% |
| LMArena Coding | 1186 | — |
Agentic & Tool Use Not comparable
Granite 3.1 8b Instruct: 23.9 (#113), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| Berkeley Function Calling Leaderboard | 27.1% | — |
Reasoning Step 5 Preview leads
Granite 3.1 8b Instruct: 21.2 (#204), Step 5 Preview: 38.0 (#58)
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| CritPt | — | 20.9% |
| LMArena Hard Prompts | 1146 | — |
Math Not comparable
Granite 3.1 8b Instruct: 30.4 (#210), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Math | 1152 | — |
Knowledge Not comparable
Granite 3.1 8b Instruct: 30.6 (#218), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Expert | 1142 | — |
Multilingual Not comparable
Granite 3.1 8b Instruct: 31.1 (#255), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Non-English | 1099 | — |
| LMArena Chinese | 1145 | — |
| LMArena Russian | 1092 | — |
Instruction Following Not comparable
Granite 3.1 8b Instruct: 58.9 (#254), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Instruction Following | 1131 | — |
Long Context Not comparable
Granite 3.1 8b Instruct: 35.2 (#236), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Longer Query | 1162 | — |
Writing & Preference Not comparable
Granite 3.1 8b Instruct: 35.7 (#261), Step 5 Preview: —
| Benchmark | Granite 3.1 8b Instruct | Step 5 Preview |
|---|---|---|
| LMArena Text | 1150 | — |
| LMArena Creative Writing | 1129 | — |
| LMArena Multi-Turn | 1108 | — |
Frequently asked questions
Is Granite 3.1 8b Instruct better than Step 5 Preview?
Step 5 Preview is the stronger model overall, scoring 43.8 to 31.8 on the Noometry Index.
Is Granite 3.1 8b Instruct or Step 5 Preview better for coding?
Step 5 Preview scores higher on coding benchmarks: 50.6 versus 33.9 in the Noometry coding category.
How many benchmarks do Granite 3.1 8b Instruct and Step 5 Preview share?
0 benchmarks have published results for both models. Granite 3.1 8b Instruct has 13 scored results on Noometry and Step 5 Preview has 3.