Compare / head-to-head
GPT-4.1vsGrok 4.20 Reasoning
Grok 4.20 Reasoning leads 3 of 4 shared benchmarks. Grok 4.20 Reasoning is 2.7x cheaper per token. GPT-4.1 has the larger context window (1.0M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 3
Grok 4.20 Reasoning leads
Cheaper per token
Grok 4.20 Reasoning
2.7x cheaper, input + output
Larger context
GPT-4.1
1.0M tokens
Provider uptime (30d)
94.2446% · —
OpenAI · xAI
GPT-4.1
OpenAI · released 2025-04-14
textvision
Grok 4.20 Reasoning
xAI · released 2026-03-09
textvision
Quality
Benchmark matrix
4 shared · 5 only GPT-4.1 · 1 only Grok 4.20 Reasoning| Benchmark | GPT-4.1 | Grok 4.20 Reasoning | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| GPQA Diamond | 66.3% ↗ | 89.3% ↗epoch | -23 pt | Grok 4.20 Reasoning |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 6% ↗epoch | 44.9% ↗epoch | -38.9 pt | Grok 4.20 Reasoning |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 38.3% ↗epoch | 92.2% ↗epoch | -53.9 pt | Grok 4.20 Reasoning |
| SimpleQA Verified | 31.1% ↗epoch | 30.2% ↗epoch | +0.9 pt | GPT-4.1 |
| Only GPT-4.1 reports · 5 | ||||
| SWE-bench Verified | 54.6% ↗ | not reported | — | — |
| MMLU | 90.2% ↗ | not reported | — | — |
| AIME 2024 | 48.1% ↗ | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 48.5% ↗epoch | not reported | — | — |
| Video-MME (long, no subtitles) | 72% ↗ | not reported | — | — |
| Only Grok 4.20 Reasoning reports · 1 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | not reported | 17.1% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-4.1 minus Grok 4.20 Reasoning in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | GPT-4.1 | Grok 4.20 Reasoning | Edge |
|---|---|---|---|
| Context window | 1.0M tokens | 1M tokens | GPT-4.1 |
| Max output | 33K tokens | — | — |
| Input price / 1M | $2 ↗ | $1.25 ↗ | Grok 4.20 Reasoning |
| Output price / 1M | $8 ↗ | $2.5 ↗ | Grok 4.20 Reasoning |
| Cached input / 1M | $0.5 ↗ | $0.2 ↗ | Grok 4.20 Reasoning |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $10 | $3.75 | Grok 4.20 Reasoning |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-04-14 | 2026-03-09 | — |
| Cited benchmark scores | 10 | 5 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GPT-4.1 vs …
Models sharing the most benchmarksMore matchups
Grok 4.20 Reasoning vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run GPT-4.1 and Grok 4.20 Reasoning on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.