xAI
Grok 4.5
xAI's Grok model for chat, coding, agentic tools, and lower hallucination risk
Model facts
- Context window
- 5K tokens
- Maximum output
- 5K tokens
- Cheapest paid input
- $2 per 1M tokens
- Cheapest paid output
- $6 per 1M tokens
- Open weights
- no
- Providers
- 26
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| high | 55.8 | 72.4 | not measured | 50.5 |
Observed price history
- 2026-08-24: $1.8 input / $5.4 output per 1M tokens
- 2026-08-28: $2 input / $6 output per 1M tokens
API providers
- Kenari — model id grok-4-5; free input / free output per 1M tokens; provider documentation
- AIHubMix — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Abacus — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Cloudflare AI Gateway — model id xai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- CrossModel — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- DaoXE — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- DevPass (LLM Gateway) — model id grok-4-5; $2 input / $6 output per 1M tokens; provider documentation
- Eden AI — model id xai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- GitHub Copilot — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Impossibl — model id xai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Kilo Gateway — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- LLM Gateway (xAI) — model id xai/grok-4-5; $2 input / $6 output per 1M tokens; provider documentation
- Merge Gateway — model id xai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- NanoGPT — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Ofox — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- OpenCode Go — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- OpenCode Zen — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- OpenRouter — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Opper — model id xai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- OrcaRouter — model id grok/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Pioneer — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Requesty — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id spacexai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- ZenMux — model id x-ai/grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- xAI — model id grok-4.5; $2 input / $6 output per 1M tokens; provider documentation
- Venice AI — model id grok-4-5; $2.27 input / $6.8 output per 1M tokens; provider documentation