Our take
xAI is a US-headquartered provider of proprietary Grok models with a tight, vertically integrated catalogue and strong compliance credentials. It offers SOC 2 attestation, a zero-retention option, and a commitment not to train on prompts.
Use this when you need proprietary models with independently verified security attestation and data-control guarantees. Pick it for workloads where prompt data must not be used for training, or for low-latency multi-agent tasks if the highest-throughput tier fits. Skip it if you require a verified EU-region endpoint, measured throughput on every variant, or a broad catalogue across multiple model families.
- Strong compliance and data-control posture: SOC 2 attestation, no training on prompts, and a zero-retention option are all verified.
- Highest verified throughput in its own catalogue comes at its cheapest price point — Grok 4 20 multi-agent achieves 563 tps at the lowest input/output tier.
- No training on prompts with optional zero retention.
- More than half of offers lack throughput measurement: only 8 of 15 tracked offers have verified data, including all variants of Grok 4 5.
- No verified EU-region endpoint.
- Throughput varies widely even at identical pricing — a 5.7x spread at one tier and 4.9x at another — so price alone does not predict speed.
Privacy & data handling
- ✓
- Yes
- ✗
- No
- No answer on record
The colour says whether the answer favours you, not whether it is a yes — not training on your prompts earns a green cross, no zero-retention option earns a red one.
Prompt retention: 30 days.