Model comparison
Grok Build 0.1 vs Step 3.7 Flash
Grok Build 0.1 and Step 3.7 Flash score almost the same on the Noometry Index (36.4 vs 37.3), so choose on price, context window or the category you care about most.
Last verified . 2 shared benchmarks.
StepFunSummary
- They share 2 benchmarks with published results for both. Grok Build 0.1 scores higher in 2 categories and Step 3.7 Flash in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok Build 0.1 leads 32.2 to 21.6.
- The biggest single-benchmark swing is SciCode: 50.2% for Grok Build 0.1 and 40% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $1 / $2 for Grok Build 0.1.
- Step 3.7 Flash has downloadable open weights; the other is API-only.
Side by side
| Grok Build 0.1 | Step 3.7 Flash | |
|---|---|---|
| Provider | xAI | StepFun |
| Noometry Index | 36.4 | 37.3 |
| Released | 2026-04-16 | 2026-05-29 |
| Weights | Proprietary | Open |
| Context window | 256K | 256K |
| Max output | 256K | 256K |
| Input $ / M tokens | $1 | $0.18 |
| Output $ / M tokens | $2 | $1.11 |
| Results tracked | 3 | 5 |
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Category by category
Coding Grok Build 0.1 leads
Grok Build 0.1: 43.1 (#91), Step 3.7 Flash: 40.0 (#150)
Agentic & Tool Use Not comparable
Grok Build 0.1: 22.7 (#129), Step 3.7 Flash: —
| Benchmark | Grok Build 0.1 | Step 3.7 Flash |
|---|---|---|
| GBAEval | 2.4% | — |
Reasoning Grok Build 0.1 leads
Grok Build 0.1: 32.2 (#77), Step 3.7 Flash: 21.6 (#219)
| Benchmark | Grok Build 0.1 | Step 3.7 Flash |
|---|---|---|
| CritPt | 9.1% | 2.3% |
| NYT Connections (extended) | — | 39.7% |
Math Not comparable
Grok Build 0.1: —, Step 3.7 Flash: 42.9 (#82)
| Benchmark | Grok Build 0.1 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |
Frequently asked questions
Is Grok Build 0.1 better than Step 3.7 Flash?
Grok Build 0.1 and Step 3.7 Flash score almost the same on the Noometry Index (36.4 vs 37.3), so choose on price, context window or the category you care about most.
Which is cheaper, Grok Build 0.1 or Step 3.7 Flash?
Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; Grok Build 0.1 lists at $1 and $2.
Is Grok Build 0.1 or Step 3.7 Flash better for coding?
Grok Build 0.1 scores higher on coding benchmarks: 43.1 versus 40.0 in the Noometry coding category.
Which has the bigger context window?
Both accept 256K tokens.
How many benchmarks do Grok Build 0.1 and Step 3.7 Flash share?
2 benchmarks have published results for both models. Grok Build 0.1 has 3 scored results on Noometry and Step 3.7 Flash has 5.