The Known Good Updated 29 Jul 2026
Providers· First-party endpoint· 5 tracked models

xAI — pricing & performance

Compare models All providers Data sources
Models served
5
of 947 tracked models
Mean output speed
192
tokens per second, averaged over
5 measured endpoints
Mean latency
3.2s
time to first token, averaged over
5 measured endpoints
Cheapest blended
$1.25
per 1M tokens at a 3:1
input:output blend
Output speed on xAI

Median output tokens per second for all 5 models on xAI with published throughput telemetry from OpenRouter. Higher is better. We do not run these measurements ourselves.

All 5 of 5 models
The Known Good
5 models on xAI
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Model Creator Input $/M Output $/M Blended Speed TTFT Context
xAI: Grok 4.20 xAI $1.25 $2.50 $1.56 198 0.3s 2.00M
xAI: Grok 4.20 Multi-Agent xAI $1.25 $2.50 $1.56 526 13.5s 2.00M
xAI: Grok 4.3 xAI $1.25 $2.50 $1.56 65 0.8s 1.00M
xAI: Grok 4.5 xAI $2.00 $6.00 $3.00 56 1.1s 500k
xAI: Grok Build 0.1 xAI $1.00 $2.00 $1.25 113 0.3s 256k
The Known Good
Source. Prices, endpoint availability and throughput for xAI are ingested from OpenRouter; model metadata is enriched from models.dev. A blank cell means the figure was not published for that endpoint — it never means zero. Blended price is (3 × input + output) ÷ 4, the same 3:1 blend used everywhere on this site; see methodology. Quality scores are not provider-specific: a model scores the same wherever it is hosted, so quality lives on the model pages.