Model comparison
Claude Haiku 5.5 vs Grok-2 (Dec 2024)
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 33.7 on the Noometry Index.
Last verified . 2 shared benchmarks.
Summary
- They share 2 benchmarks with published results for both. Claude Haiku 5.5 scores higher in 4 categories and Grok-2 (Dec 2024) in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 20.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Claude Haiku 5.5 and 11.5% for Grok-2 (Dec 2024).
Side by side
| Claude Haiku 5.5 | Grok-2 (Dec 2024) | |
|---|---|---|
| Provider | Anthropic | xAI |
| Noometry Index | 49.5 | 33.7 |
| Released | 2026-10-07 | 2024-08-13 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $0.10 | — |
| Output $ / M tokens | $0.50 | — |
| Results tracked | 9 | 34 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Grok-2 (Dec 2024): 33.3 (#258)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena WebDev | 1587 | — |
| WeirdML | — | 22.2% |
| LiveBench Coding | — | 46.4% |
| LMArena Coding | — | 1287 |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Grok-2 (Dec 2024): 16.9 (#299)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| SimpleBench | — | 22.7% |
| NYT Connections (extended) | 65.7% | — |
| LiveBench Reasoning | — | 54.8% |
| LMArena Hard Prompts | — | 1272 |
| Mystery Game Puzzles | 30% | — |
| DTBench | — | 65.2% |
| LiveBench Data Analysis | — | 54.5% |
| Epoch Capabilities Index | — | 130.48 |
| LiveBench | — | 54.3% |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Grok-2 (Dec 2024): 20.8 (#284)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 98.9% | 11.5% |
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| LiveBench Math | — | 54.9% |
| LMArena Math | — | 1283 |
| MATH Level 5 | — | 63.5% |
| FrontierMath (Feb 2025 set) | — | 0.7% |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Grok-2 (Dec 2024): 29.8 (#233)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| GPQA Diamond | 89.6% | 53.8% |
| SimpleQA Verified | 23.8% | — |
| Confabulations | — | 20.1% |
| LMArena Expert | — | 1254 |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), Grok-2 (Dec 2024): —
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Grok-2 (Dec 2024): 43.1 (#188)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Non-English | — | 1282 |
| LMArena Chinese | — | 1289 |
| LMArena French | — | 1318 |
| LMArena German | — | 1287 |
| LMArena Japanese | — | 1244 |
| LMArena Korean | — | 1237 |
| LMArena Russian | — | 1286 |
| LMArena Spanish | — | 1281 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Grok-2 (Dec 2024): 66.9 (#202)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LiveBench Instruction Following | — | 69.6% |
| LMArena Instruction Following | — | 1270 |
Long Context Not comparable
Claude Haiku 5.5: —, Grok-2 (Dec 2024): 38.8 (#190)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Longer Query | — | 1276 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Grok-2 (Dec 2024): 48.6 (#198)
| Benchmark | Claude Haiku 5.5 | Grok-2 (Dec 2024) |
|---|---|---|
| LMArena Text | — | 1305 |
| LMArena Creative Writing | — | 1284 |
| Short-Story Creative Writing | — | 63.6% |
| LMArena Multi-Turn | — | 1290 |
| LiveBench Language | — | 45.6% |
Frequently asked questions
Is Claude Haiku 5.5 better than Grok-2 (Dec 2024)?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 33.7 on the Noometry Index.
Is Claude Haiku 5.5 or Grok-2 (Dec 2024) better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 33.3 in the Noometry coding category.
How many benchmarks do Claude Haiku 5.5 and Grok-2 (Dec 2024) share?
2 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Grok-2 (Dec 2024) has 34.