Model comparison
Olmo 7b Instruct vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 30.3 on the Noometry Index.
Last verified . 10 shared benchmarks.
Allen Institute for AI (Ai2)
StepFunSummary
- They share 10 benchmarks with published results for both. Olmo 7b Instruct scores higher in 0 categories and Step 3.5 Flash in 6 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Step 3.5 Flash leads 58.8 to 25.8.
Side by side
| Olmo 7b Instruct | Step 3.5 Flash | |
|---|---|---|
| Provider | Allen Institute for AI (Ai2) | StepFun |
| Noometry Index | 30.3 | 42.3 |
| Released | — | 2026-01-29 |
| Weights | Open | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 10 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Olmo 7b Instruct: 29.6 (#303), Step 3.5 Flash: 42.4 (#105)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1016 | 1436 |
Reasoning Step 3.5 Flash leads
Olmo 7b Instruct: 18.8 (#274), Step 3.5 Flash: 22.2 (#202)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 993 | 1411 |
| NYT Connections (extended) | — | 28.4% |
Math Step 3.5 Flash leads
Olmo 7b Instruct: 30.2 (#237), Step 3.5 Flash: 42.6 (#84)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1018 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
Knowledge Not comparable
Olmo 7b Instruct: —, Step 3.5 Flash: 39.6 (#132)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | — | 1421 |
Multilingual Step 3.5 Flash leads
Olmo 7b Instruct: 24.0 (#291), Step 3.5 Flash: 50.5 (#119)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 977 | 1385 |
| LMArena Chinese | 1014 | 1447 |
| LMArena Russian | 947 | 1385 |
| LMArena French | — | 1421 |
| LMArena German | — | 1405 |
| LMArena Japanese | — | 1354 |
| LMArena Korean | — | 1352 |
| LMArena Spanish | — | 1419 |
Instruction Following Step 3.5 Flash leads
Olmo 7b Instruct: 49.0 (#301), Step 3.5 Flash: 73.1 (#124)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 978 | 1385 |
Long Context Not comparable
Olmo 7b Instruct: —, Step 3.5 Flash: 42.8 (#117)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | — | 1402 |
Writing & Preference Step 3.5 Flash leads
Olmo 7b Instruct: 25.8 (#303), Step 3.5 Flash: 58.8 (#113)
| Benchmark | Olmo 7b Instruct | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1032 | 1403 |
| LMArena Creative Writing | 990 | 1357 |
| LMArena Multi-Turn | 1007 | 1405 |
Frequently asked questions
Is Olmo 7b Instruct better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 30.3 on the Noometry Index.
Is Olmo 7b Instruct or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 29.6 in the Noometry coding category.
How many benchmarks do Olmo 7b Instruct and Step 3.5 Flash share?
10 benchmarks have published results for both models. Olmo 7b Instruct has 10 scored results on Noometry and Step 3.5 Flash has 19.