Model comparison
Gemini 3.5 Flash vs Grok Build 0.1
Gemini 3.5 Flash is the stronger model overall, scoring 54.1 to 35.8 on the Noometry Index. Grok Build 0.1 costs 2.7× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.
Last verified . 3 shared benchmarks.
GoogleSummary
- They share 3 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 3 categories and Grok Build 0.1 in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.7 to 31.3.
- Grok Build 0.1 is cheaper at $1 / $2 per million input/output tokens, against $1.50 / $9 for Gemini 3.5 Flash.
- Gemini 3.5 Flash accepts more context: 1.05M tokens versus 256K.
Side by side
| Gemini 3.5 Flash | Grok Build 0.1 | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 54.1 | 35.8 |
| Released | 2026-05-19 | 2026-04-16 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | 256K |
| Max output | 66K | 256K |
| Input $ / M tokens | $1.50 | $1 |
| Output $ / M tokens | $9 | $2 |
| Results tracked | 54 | 3 |
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Category by category
Coding Gemini 3.5 Flash leads
Gemini 3.5 Flash: 49.1 (#46), Grok Build 0.1: 42.5 (#90)
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| SciCode | 53.1% | 50.2% |
| SWE-bench Verified | 79.3% | — |
| DeepSWE | 37.4% | — |
| LMArena WebDev | 1499 | — |
| WeirdML | 62.6% | — |
| LMArena Coding | 1492 | — |
| ALE-Bench | 911.02 | — |
Agentic & Tool Use Gemini 3.5 Flash leads
Gemini 3.5 Flash: 24.8 (#107), Grok Build 0.1: 22.5 (#122)
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| GBAEval | 6.7% | 2.4% |
| APEX-Agents | 27.5% | — |
| GDP.pdf | 14% | — |
| Vending-Bench 2 | 5,396 | — |
Reasoning Gemini 3.5 Flash leads
Gemini 3.5 Flash: 62.7 (#16), Grok Build 0.1: 31.3 (#73)
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| CritPt | 13.1% | 9.1% |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 76.7% | — |
| NYT Connections (extended) | 92.6% | — |
| ARC-AGI-1 | 92.5% | — |
| Chess Puzzles | 50% | — |
| EnigmaEval | 25.4% | — |
| EBR-Bench | 4.8% | — |
| LMArena Hard Prompts | 1488 | — |
| Mystery Game Puzzles | 32% | — |
| DTBench | 94.7% | — |
| LMCA | 47.1% | — |
| Surface Evolver Bench | 58.1% | — |
| Epoch Capabilities Index | 154.55 | — |
| ForecastBench | 59 | — |
Math Not comparable
Gemini 3.5 Flash: 60.5 (#30), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 62.8% | — |
| FrontierMath Tier 4 | 26.8% | — |
| MathArena Final-Answer Competitions | 76.3% | — |
| OTIS Mock AIME 2024-2025 | 95.6% | — |
| ProofBench | 31% | — |
| LMArena Math | 1502 | — |
| FrontierMath (Feb 2025 set) | 39% | — |
| FrontierMath Tier 4 (v1) | 14.6% | — |
Knowledge Not comparable
Gemini 3.5 Flash: 66.3 (#10), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| GPQA Diamond | 92.8% | — |
| SimpleQA Verified | 66.2% | — |
| LMArena Expert | 1493 | — |
Multimodal Not comparable
Gemini 3.5 Flash: 45.7 (#13), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| LMArena Vision | 1311 | — |
| Blueprint-Bench 2 | 33.6% | — |
| LMArena Document | 1463 | — |
Multilingual Not comparable
Gemini 3.5 Flash: 57.1 (#12), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| LMArena Non-English | 1475 | — |
| LMArena Chinese | 1525 | — |
| LMArena French | 1490 | — |
| LMArena German | 1500 | — |
| LMArena Japanese | 1481 | — |
| LMArena Korean | 1453 | — |
| LMArena Russian | 1491 | — |
| LMArena Spanish | 1478 | — |
Instruction Following Not comparable
Gemini 3.5 Flash: 77.2 (#29), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| LMArena Instruction Following | 1466 | — |
Long Context Not comparable
Gemini 3.5 Flash: 45.3 (#39), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| LMArena Longer Query | 1481 | — |
Writing & Preference Not comparable
Gemini 3.5 Flash: 65.5 (#46), Grok Build 0.1: —
| Benchmark | Gemini 3.5 Flash | Grok Build 0.1 |
|---|---|---|
| LMArena Text | 1481 | — |
| LMArena Creative Writing | 1467 | — |
| EQ-Bench 4 | 1087 | — |
| LMArena Multi-Turn | 1482 | — |
Frequently asked questions
Is Gemini 3.5 Flash better than Grok Build 0.1?
Gemini 3.5 Flash is the stronger model overall, scoring 54.1 to 35.8 on the Noometry Index. Grok Build 0.1 costs 2.7× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.
Which is cheaper, Gemini 3.5 Flash or Grok Build 0.1?
Grok Build 0.1 is cheaper. It lists at $1 per million input tokens and $2 per million output tokens; Gemini 3.5 Flash lists at $1.50 and $9.
Is Gemini 3.5 Flash or Grok Build 0.1 better for coding?
Gemini 3.5 Flash scores higher on coding benchmarks: 49.1 versus 42.5 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.5 Flash does, with 1.05M tokens against 256K.
How many benchmarks do Gemini 3.5 Flash and Grok Build 0.1 share?
3 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Grok Build 0.1 has 3.