xAI
Grok 4.3
xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk
Model facts
- Context window
- 1M tokens
- Maximum output
- 3K tokens
- Cheapest paid input
- $1.25 per 1M tokens
- Cheapest paid output
- $2.5 per 1M tokens
- Open weights
- no
- Providers
- 29
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, video, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| high | 37.9 | 42.2 | not measured | not measured |
| medium | 36.9 | not measured | not measured | 129.3 |
| low | 36.3 | not measured | not measured | 118.1 |
| Non-reasoning | 25.0 | 35.2 | not measured | 112.1 |
Observed price history
- 2026-08-24: $1.12 input / $2.25 output per 1M tokens
- 2026-08-28: $1.25 input / $2.5 output per 1M tokens
API providers
- AIHubMix — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Abacus — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Amazon Bedrock — model id xai.grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Auriko — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Cloudflare AI Gateway — model id xai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- CrossModel — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- DaoXE — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id grok-4-3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Eden AI — model id xai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- FastRouter — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- FrogBot — model id grok-4-3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Impossibl — model id xai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Kilo Gateway — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- LLM Gateway (AWS Bedrock) — model id aws-bedrock/grok-4-3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- LLM Gateway (Azure AI Foundry) — model id azure-ai-foundry/grok-4-3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- LLM Gateway (xAI) — model id xai/grok-4-3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Merge Gateway — model id xai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- NanoGPT — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Ofox — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- OpenRouter — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Opper — model id xai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- OrcaRouter — model id grok/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Requesty — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id spacexai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- ZenMux — model id x-ai/grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- xAI — model id grok-4.3; $1.25 input / $2.5 output per 1M tokens; provider documentation
- Venice AI — model id grok-4-3; $1.42 input / $2.83 output per 1M tokens; provider documentation
- AnyAPI — model id xai/grok-4.3; not published input / not published output per 1M tokens; provider documentation
- Arena — model id grok-4.3; not published input / not published output per 1M tokens; provider documentation