Model comparison
Granite 4.0 Micro vs Grok 4.1 Fast
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 29.0 on the Noometry Index. Granite 4.0 Micro costs 6.7× less per token, which makes it the better buy when Grok 4.1 Fast's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 19.2.
- Granite 4.0 Micro is cheaper at $0.017 / $0.11 per million input/output tokens, against $0.20 / $0.50 for Grok 4.1 Fast.
- Granite 4.0 Micro accepts more context: 131K tokens versus 128K.
- Granite 4.0 Micro has downloadable open weights; the other is API-only.
Side by side
| Granite 4.0 Micro | Grok 4.1 Fast | |
|---|---|---|
| Provider | IBM | xAI |
| Noometry Index | 29.0 | 41.4 |
| Released | 2025-10-02 | 2025-06-27 |
| Weights | Open | Proprietary |
| Context window | 131K | 128K |
| Max output | 118K | 30K |
| Input $ / M tokens | $0.017 | $0.20 |
| Output $ / M tokens | $0.11 | $0.50 |
| Results tracked | 8 | 32 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Not comparable
Granite 4.0 Micro: —, Grok 4.1 Fast: 34.1 (#245)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| LMArena WebDev | — | 1242 |
| LMArena Coding | — | 1411 |
| ALE-Bench | — | 394.93 |
Agentic & Tool Use Not comparable
Granite 4.0 Micro: —, Grok 4.1 Fast: 36.3 (#39)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 69.6% |
| τ²-bench Banking | — | 13.1% |
| LMArena Search | — | 1171 |
| Vending-Bench 2 | — | 1,107 |
Reasoning Grok 4.1 Fast leads
Granite 4.0 Micro: 19.2 (#265), Grok 4.1 Fast: 43.4 (#49)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| SimpleBench | — | 56% |
| NYT Connections (extended) | — | 87.4% |
| Chess Puzzles | 0% | — |
| LMArena Hard Prompts | — | 1407 |
| DTBench | — | 87.7% |
| ForecastBench | — | 61 |
Math Grok 4.1 Fast leads
Granite 4.0 Micro: 12.0 (#307), Grok 4.1 Fast: 31.9 (#221)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| MathArena Final-Answer Competitions | — | 60.9% |
| OTIS Mock AIME 2024-2025 | 2.8% | — |
| ProofBench | — | 4% |
| Omni-MATH | 20.9% | — |
| LMArena Math | — | 1408 |
Knowledge Grok 4.1 Fast leads
Granite 4.0 Micro: 9.9 (#304), Grok 4.1 Fast: 33.1 (#207)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| GPQA Diamond | 28.3% | — |
| MMLU-Pro | 39.5% | — |
| Vectara Hallucination Rate | — | 17.8% |
| GPQA (HELM) | 30.7% | — |
| LMArena Expert | — | 1399 |
Multimodal Not comparable
Granite 4.0 Micro: —, Grok 4.1 Fast: 37.0 (#76)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| LMArena Vision | — | 1201 |
Multilingual Not comparable
Granite 4.0 Micro: —, Grok 4.1 Fast: 51.0 (#114)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| LMArena Non-English | — | 1391 |
| LMArena Chinese | — | 1441 |
| LMArena French | — | 1415 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1349 |
| LMArena Korean | — | 1361 |
| LMArena Russian | — | 1387 |
| LMArena Spanish | — | 1413 |
Instruction Following Grok 4.1 Fast leads
Granite 4.0 Micro: 69.9 (#169), Grok 4.1 Fast: 72.7 (#133)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| IFEval | 84.9% | — |
| LMArena Instruction Following | — | 1376 |
Long Context Not comparable
Granite 4.0 Micro: —, Grok 4.1 Fast: 42.4 (#126)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| LMArena Longer Query | — | 1390 |
Writing & Preference Grok 4.1 Fast leads
Granite 4.0 Micro: 46.7 (#216), Grok 4.1 Fast: 57.2 (#131)
| Benchmark | Granite 4.0 Micro | Grok 4.1 Fast |
|---|---|---|
| LMArena Text | — | 1408 |
| LMArena Creative Writing | — | 1394 |
| EQ-Bench Creative Writing | — | 1327 |
| WildBench | 67% | — |
| LMArena Multi-Turn | — | 1389 |
Frequently asked questions
Is Granite 4.0 Micro better than Grok 4.1 Fast?
Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 29.0 on the Noometry Index. Granite 4.0 Micro costs 6.7× less per token, which makes it the better buy when Grok 4.1 Fast's lead doesn't matter for your workload.
Which is cheaper, Granite 4.0 Micro or Grok 4.1 Fast?
Granite 4.0 Micro is cheaper. It lists at $0.017 per million input tokens and $0.11 per million output tokens; Grok 4.1 Fast lists at $0.20 and $0.50.
Which has the bigger context window?
Granite 4.0 Micro does, with 131K tokens against 128K.
How many benchmarks do Granite 4.0 Micro and Grok 4.1 Fast share?
0 benchmarks have published results for both models. Granite 4.0 Micro has 8 scored results on Noometry and Grok 4.1 Fast has 32.