Model comparison
GPT-5.4 mini vs Grok Build 0.1
GPT-5.4 mini is the stronger model overall, scoring 44.8 to 35.8 on the Noometry Index.
Last verified . 2 shared benchmarks.
Summary
- They share 2 benchmarks with published results for both. GPT-5.4 mini scores higher in 2 categories and Grok Build 0.1 in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in agentic & tool use, where GPT-5.4 mini leads 29.6 to 22.5.
- Grok Build 0.1 is cheaper at $1 / $2 per million input/output tokens, against $0.75 / $4.50 for GPT-5.4 mini.
- GPT-5.4 mini accepts more context: 400K tokens versus 256K.
Side by side
| GPT-5.4 mini | Grok Build 0.1 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Noometry Index | 44.8 | 35.8 |
| Released | 2026-03-17 | 2026-04-16 |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 256K |
| Max output | 128K | 256K |
| Input $ / M tokens | $0.75 | $1 |
| Output $ / M tokens | $4.50 | $2 |
| Results tracked | 46 | 3 |
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Category by category
Coding GPT-5.4 mini leads
GPT-5.4 mini: 45.0 (#67), Grok Build 0.1: 42.5 (#90)
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| SciCode | 49.9% | 50.2% |
| FrontierCode | 27% | — |
| LMArena WebDev | 1397 | — |
| WeirdML | 60.3% | — |
| LMArena Coding | 1438 | — |
| ALE-Bench | 1,189 | — |
Agentic & Tool Use GPT-5.4 mini leads
GPT-5.4 mini: 29.6 (#74), Grok Build 0.1: 22.5 (#122)
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| DeepResearch Bench | 36.3% | — |
| GBAEval | — | 2.4% |
Reasoning Too close to call
GPT-5.4 mini: 30.3 (#77), Grok Build 0.1: 31.3 (#73)
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| CritPt | 10% | 9.1% |
| ARC-AGI-2 | 18.9% | — |
| Kagi LLM Benchmark | 37.9% | — |
| NYT Connections (extended) | 61.8% | — |
| ARC-AGI-1 | 63.7% | — |
| Chess Puzzles | 24% | — |
| Thematic Generalization | 61.7% | — |
| LMArena Hard Prompts | 1424 | — |
| Mystery Game Puzzles | 11% | — |
| DTBench | 80% | — |
| LMCA | 40.8% | — |
| Epoch Capabilities Index | 148.83 | — |
| ForecastBench | 57 | — |
Math Not comparable
GPT-5.4 mini: 45.4 (#63), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 51.2% | — |
| FrontierMath Tier 4 | 9.8% | — |
| OTIS Mock AIME 2024-2025 | 88.9% | — |
| ProofBench | 21% | — |
| LMArena Math | 1418 | — |
| FrontierMath (Feb 2025 set) | 28.3% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Not comparable
GPT-5.4 mini: 51.4 (#62), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| GPQA Diamond | 86.9% | — |
| SimpleQA Verified | 29.4% | — |
| Vectara Hallucination Rate | 5.5% | — |
| LMArena Expert | 1434 | — |
Multimodal Not comparable
GPT-5.4 mini: 39.0 (#51), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| LMArena Vision | 1245 | — |
Multilingual Not comparable
GPT-5.4 mini: 52.1 (#94), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| LMArena Non-English | 1405 | — |
| LMArena Chinese | 1446 | — |
| LMArena French | 1440 | — |
| LMArena German | 1407 | — |
| LMArena Japanese | 1375 | — |
| LMArena Korean | 1369 | — |
| LMArena Russian | 1417 | — |
| LMArena Spanish | 1403 | — |
Instruction Following Not comparable
GPT-5.4 mini: 74.3 (#99), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| LMArena Instruction Following | 1405 | — |
Long Context Not comparable
GPT-5.4 mini: 42.9 (#107), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| LMArena Longer Query | 1407 | — |
Writing & Preference Not comparable
GPT-5.4 mini: 64.2 (#56), Grok Build 0.1: —
| Benchmark | GPT-5.4 mini | Grok Build 0.1 |
|---|---|---|
| LMArena Text | 1411 | — |
| LMArena Creative Writing | 1370 | — |
| EQ-Bench Creative Writing | 1665 | — |
| LMArena Multi-Turn | 1429 | — |
Frequently asked questions
Is GPT-5.4 mini better than Grok Build 0.1?
GPT-5.4 mini is the stronger model overall, scoring 44.8 to 35.8 on the Noometry Index.
Which is cheaper, GPT-5.4 mini 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; GPT-5.4 mini lists at $0.75 and $4.50.
Is GPT-5.4 mini or Grok Build 0.1 better for coding?
GPT-5.4 mini scores higher on coding benchmarks: 45.0 versus 42.5 in the Noometry coding category.
Which has the bigger context window?
GPT-5.4 mini does, with 400K tokens against 256K.
How many benchmarks do GPT-5.4 mini and Grok Build 0.1 share?
2 benchmarks have published results for both models. GPT-5.4 mini has 46 scored results on Noometry and Grok Build 0.1 has 3.