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Models / xAI

Grok 4.20

by xAI · x-ai/grok-4.20

Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

reasoningtool-usevisionreleased 2026-03-31
Legal score · raw
-
not yet benchmarked
Context
2M
max output 1.8M
Input
$1.25
per 1M tokens
Output
$2.50
per 1M tokens
Suite cost
-
run the suite to see

Benchmark results

TaskCategoryRawJuicedCorrectLatencyCostRan
Hearsay IdentificationEvidence------
Bluebook Citation FormatResearch & Writing------
Federal Civil ProcedureProcedure------
Limitations ArithmeticProcedure------
Contract Clause ClassificationContracts------
Citation Hallucination ResistanceReliability------