SpaceXAI
Grok 4.20 Beta is the newest flagship model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherence, delivering consistently precise and truthful responses.
xAI model releasesRank #227 across 600
No rank
Rank #267 across 379
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Higher bars mean stronger relative placement.
Streaming speed is not measured for this model yet.
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 21.8 | #227 |
| GPQA | reasoning | 77.6% | #184 |
| Humanity's Last Exam | reasoning | 24.2% | #95 |
| SciCode | coding, reasoning | 32.8% | #290 |
| Blended Price |
| cost |
| $3.00/M |
| #267 |
| Input Price | cost | $2.00/M | #306 |
| Output Price | cost | $6.00/M | #256 |
| Value Index | cost, overall | 7.3 | #289 |