Model comparison
Falcon-40B vs Grok 4.5
Grok 4.5 has enough public results to be ranked (#25); Falcon-40B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Technology Innovation InstituteSummary
- They share 1 benchmark with published results for both.
- Falcon-40B has downloadable open weights; the other is API-only.
Side by side
| Falcon-40B | Grok 4.5 | |
|---|---|---|
| Provider | Technology Innovation Institute | xAI |
| Noometry Index | — | 55.0 |
| Released | 2023-03-15 | 2026-07-08 |
| Weights | Open | Proprietary |
| Context window | — | 500K |
| Max output | — | 500K |
| Input $ / M tokens | — | $2 |
| Output $ / M tokens | — | $6 |
| Results tracked | 12 | 52 |
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Category by category
Coding Not comparable
Falcon-40B: —, Grok 4.5: 52.2 (#35)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| DeepSWE | — | 53.8% |
| FrontierCode | — | 42.4% |
| LMArena WebDev | — | 1553 |
| SciCode | — | 54.1% |
| WeirdML | — | 46.4% |
| LMArena Coding | — | 1474 |
| ALE-Bench | — | 1,309 |
Agentic & Tool Use Not comparable
Falcon-40B: —, Grok 4.5: 44.4 (#17)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| APEX-Agents | — | 56.2% |
| τ²-bench Banking | — | 47.9% |
| PostTrainBench | — | 23.4% |
| GBAEval | — | 65.4% |
| GDP.pdf | — | 14% |
| LMArena Search | — | 1213 |
| Vending-Bench 2 | — | 3,887 |
Reasoning Not comparable
Falcon-40B: —, Grok 4.5: 56.1 (#25)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| Epoch Capabilities Index | 104.45 | 153.92 |
| ARC-AGI-2 | — | 52.6% |
| SimpleBench | — | 70% |
| Kagi LLM Benchmark | — | 83.5% |
| NYT Connections (extended) | — | 79.9% |
| ARC-AGI-1 | — | 87.2% |
| CritPt | — | 15.4% |
| Chess Puzzles | — | 36% |
| LMArena Hard Prompts | — | 1462 |
| DTBench | — | 96.5% |
| LMCA | — | 45.2% |
| Surface Evolver Bench | — | 74.4% |
| BIG-Bench Hard | 37.1% | — |
| HellaSwag | 85.3% | — |
| LAMBADA | 77.3% | — |
| PIQA | 83% | — |
| WinoGrande | 76.9% | — |
Math Not comparable
Falcon-40B: —, Grok 4.5: 60.9 (#35)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 57.2% |
| FrontierMath Tier 4 | — | 24.4% |
| OTIS Mock AIME 2024-2025 | — | 97.8% |
| ProofBench | — | 31% |
| LMArena Math | — | 1459 |
| GSM8K | 33.8% | — |
Knowledge Not comparable
Falcon-40B: —, Grok 4.5: 62.3 (#24)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| GPQA Diamond | — | 93.4% |
| SimpleQA Verified | — | 48.3% |
| LMArena Expert | — | 1466 |
| ARC (AI2) Challenge | 61.9% | — |
| BoolQ | 83.1% | — |
| MMLU | 56.9% | — |
| OpenBookQA | 56.6% | — |
| TriviaQA | 79.9% | — |
Multimodal Not comparable
Falcon-40B: —, Grok 4.5: 37.6 (#72)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| LMArena Vision | — | 1288 |
| Blueprint-Bench 2 | — | 27.3% |
| Furniture Assembly | — | 22.5% |
| LMArena Document | — | 1452 |
Multilingual Not comparable
Falcon-40B: —, Grok 4.5: 54.4 (#42)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| LMArena Non-English | — | 1440 |
| LMArena Chinese | — | 1496 |
| LMArena French | — | 1456 |
| LMArena German | — | 1446 |
| LMArena Japanese | — | 1428 |
| LMArena Korean | — | 1404 |
| LMArena Russian | — | 1448 |
| LMArena Spanish | — | 1450 |
Instruction Following Not comparable
Falcon-40B: —, Grok 4.5: 76.0 (#48)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| LMArena Instruction Following | — | 1446 |
Long Context Not comparable
Falcon-40B: —, Grok 4.5: 44.8 (#56)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| LMArena Longer Query | — | 1463 |
Writing & Preference Not comparable
Falcon-40B: —, Grok 4.5: 65.8 (#42)
| Benchmark | Falcon-40B | Grok 4.5 |
|---|---|---|
| LMArena Text | — | 1448 |
| LMArena Creative Writing | — | 1442 |
| EQ-Bench Creative Writing | — | 1579 |
| LMArena Multi-Turn | — | 1456 |
Frequently asked questions
Is Falcon-40B better than Grok 4.5?
Grok 4.5 has enough public results to be ranked (#25); Falcon-40B does not yet, so treat this comparison as directional.
How many benchmarks do Falcon-40B and Grok 4.5 share?
1 benchmark has published results for both models. Falcon-40B has 12 scored results on Noometry and Grok 4.5 has 52.