Models on xAI · prices & measurements for models served by xAI’s APIUSD / MTOK · VERIFIED 4 MINUTES AGO
| MODEL | INPUT | OUTPUT | CONTEXT | QUANT | TTFT | TPS | VS BEST ELSEWHERE |
|---|---|---|---|---|---|---|---|
 Grok Build 0.1xAI | $1.00 | $2.00 | 256K | — | 0.45s° | 83° tok/s | only provider |
| Grok 4.3xAI | $1.25 | $2.50 | 1M | — | 0.62s° | 184° tok/s | only provider |
| Grok 4.20 Multi-AgentxAI | $1.25 | $2.50 | 2M | — | 12.9s° | 3959° tok/s | only provider |
| Grok 4.20xAI | $1.25 | $2.50 | 2M | — | 0.65s° | 106° tok/s | only provider |
| Grok 4.6xAI | $2.00 | $6.00 | 500K | — | 0.79s° | 65° tok/s | only provider |
| Grok 4.5xAI | $2.00 | $6.00 | 500K | — | 0.76s° | 68° tok/s | only provider |
TTFT/TPS: ModelIndex-measured medians (P50, trailing 72h) for xAI’s endpoints · ° = measured via OpenRouter routing · ✕ = probed, no measurable stream · SMOKE: of 5 capability probes passed · methodology on each model page