SpaceXAI
Grok 4.20 0309 v2 (Reasoning)
Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
xAI model releasesModel Snapshot
ReleaseApr 7, 2026
Context2,000,000
Overall
Rank #77 across 566
37.0
Coding
No rank
n/a
Blended Price
Rank #266 across 371
$3.00/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Output Speed159.2 tok/s
First Token21.12s
Max Outputn/a
Pricing
Blended$3.00/M
Input$2.00/M
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 37.0 | #77 |
| GPQA | reasoning | 91.1% | #23 |
| Humanity's Last Exam | reasoning | 32.2% | #44 |
| SciCode | coding, reasoning | 45.6% | #73 |
| Output Speed |