Grok 4.20 Multi Agent Beta 0309vsGrok 4 1 Fast Reasoning
Grok 4.20 Multi Agent Beta 0309 leads the overall Podium Score by 2.0 points (74.0 vs 72.0).Category wins: Grok 4.20 Multi Agent Beta 0309 0 — 0 Grok 4 1 Fast Reasoning.Grok 4.20 Multi Agent Beta 0309 is the cheaper pick ($15/M vs $15/M per 1M output tokens). Grok 4.20 Multi Agent Beta 0309 is faster (50 t/s vs 50 t/s).
Key VerdictAggregated 2026 Benchmark Analysis
Grok 4.20 Multi Agent Beta 0309 is rated higher overall with a Podium Score of 74.0 (vs 72.0 for Grok 4 1 Fast Reasoning). Both models show closely matched capabilities across domain benchmarks.
Coding & Engineering
Comparable
Inference Speed
Grok 4.20 Multi Agent Beta 0309 (50 t/s)
Cost Efficiency
Grok 4.20 Multi Agent Beta 0309 ($15/M/M)
| Metric | Grok 4.20 Multi Agent Beta 0309 | Grok 4 1 Fast Reasoning |
|---|---|---|
| Podium Score | 74.0 ▲ | 72.0 |
| Arena Elo | — | — |
| Intelligence Index | — | — |
| Coding | — | — |
| Math | — | — |
| Reasoning | — | — |
| Agentic | — | — |
| Knowledge | — | — |
| Multimodal | — | — |
| Long-context | — | — |
| Output speed | 50 t/s | 50 t/s |
| Output price | $15/M | $15/M |
| Context window | 128K | 128K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Grok 4.20 Multi vs Claude Mythos · Grok 4.20 Multi vs Claude Fable 5 · Grok 4.20 Multi vs Kimi K3 · Grok 4.20 Multi vs Claude Opus 5