Grok 4.5
xai · xai/grok-4.5
xAI's Grok model for chat, coding, agentic tools, and lower hallucination risk
≈333k Chinese characters of context · Reads images · Step-by-step reasoning · Calls tools / agents · Structured JSON output
Read a 200,000-Chinese-character book and write a 2,000-Chinese-character summary: about $0.62
An order-of-magnitude estimate at 1.5 tokens per Chinese character and the vendor's own rate — not a quote. Full method: the glossary on the AI Models page.
Specs
| Context | 500,000(≈333k Chinese characters) |
|---|---|
| Max output | 500,000 |
| Structured output | Yes |
| Open weights | No |
| Released | 2026-07-08 |
Source: models.dev snapshot 2026-08-29
Who serves it, at what price
| Provider | In /M | Out /M | Cache read /M |
|---|---|---|---|
| xAIfirst-party | $2 | $6 | $0.3 |
| Abacus | $2 | $6 | — |
| AIHubMix | $2 | $6 | $0.5 |
| DaoXE | $2 | $6 | $0.5 |
| GitHub Copilot | $2 | $6 | $0.5 |
| OpenCode Zen | $2 | $6 | $0.3 |
| OpenCode Go | $2 | $6 | $0.3 |
| Pioneer | $2 | $6 | $0.5 |
| Requesty | $2 | $6 | $0.5 |
Rows tagged “first-party” are the model vendor's own pricing; untagged rows are resale channels and may differ.
When to choose it
This model is on our watch list but has no written assessment yet — we do not write what we cannot support. The specs and prices above still stand.
Leaderboard
Not yet on any leaderboard we track. That does not mean the model performs poorly — it means we have not taken this snapshot for it yet, and we do not publish a score we have not measured.