xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk
https://api.x.ai/v1 grok-4-3 | Benchmark | Score | Metric | Date |
|---|---|---|---|
| Artificial Analysis Intelligence Index | 53 | index score | 2026-04-30 |
| GDPval-AA | 1500 | Elo | 2026-04-30 |
| τ²-Bench Telecom | 98 | success rate | 2026-04-30 |
| IFBench | 81 | accuracy | 2026-04-30 |
grok-4.3 is listed for chat workloads and supports a 1.0M context window.
Check xAI's current endpoint status before integrating this listing. Use the alternatives table if the provider listing is unavailable.
We only found this grok-4-3 listing on xAI in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | grok-4.3 | Check provider | 1.0M | Native | Credit-based |
| Model | Provider | Context | Access |
|---|---|---|---|
| grok-4.1-fast | xAI | 2.0M | Check provider |
| grok-3-mini | xAI | 131K | Check provider |
grok-4.3 is tagged for chat in this catalog.
grok-4.3 appears in the free model catalog for xAI, but its current endpoint availability should be confirmed with the provider before use.
The model ID shown in this catalog is grok-4-3.
The listed free tier limit is Credit-based. Limits can change per account tier, so confirm against the provider dashboard.
The listed context window is 1.0M tokens with up to 32K output tokens.
grok-4.3 — free model from xAI.
For API keys, setup steps, and provider-level limits, see the xAI provider page.