Grok 4.5
xAI · · 22 days after Grok Imagine Video 1.5
Verified
2 of 2 published values traced to a source3 primary sources, 3 archived1 not disclosed by the lab1 not researched yet
Why this status
Cited to the lab's own announcement and official documentation. Not verified because the context window could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from.
What these states mean · How records are judged · Has this record changed?
xAI's smartest model, its first release after going public and acquiring Cursor. xAI later re-dated its announcement page: the capture archived on 2026-07-08 reads "Jul 8, 2026", and the live page now reads "Jul 16, 2026". A page captured on July 8 was public on July 8, so that date stands; the later one likely reflects wider rollout.
Details
| Released | July 8, 2026 |
|---|---|
| Company | xAI |
| Family | Grok |
| Lineage | after Grok 4.20 · before Grok 4.6 |
| Era | Agentic systems |
| Type | Language model · LLM |
| Modalities | Text + Image → Text |
| Capabilities | Reasoning, Function calling, Structured output, Coding, Agentic |
| Weights | Proprietary |
| Licence | Not applicable — proprietary |
| Context window | 500K tokens |
| Parameters | Not disclosed |
Pricing
The price a lab's own page showed on the day that page was captured. That is what a snapshot can prove; it is not necessarily the launch price, and prices are often cut later. Citing the live pricing page instead would give a number with no date at all.
| Input | $2 per million tokens observed July 8, 2026 · archived snapshot (2026-07-08) |
|---|---|
| Output | $6 per million tokens observed July 8, 2026 · archived snapshot (2026-07-08) |
Current information, elsewhere
This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.
- Current price and providers OpenRouter ↗
- Current benchmark scores Artificial Analysis ↗
Sources
Record status: verified · confidence 90/100 · 3 of 3 primary
Cited to the lab's own announcement and official documentation. Not verified because the context window could not be found in any cited primary source — the value may be correct, but this dataset cannot yet show where it came from.
- x.ai Official announcement archived
- docs.x.ai Official documentation archived
- docs.x.ai Official documentation archived
Primary means published by the organisation that made the model. Verified records require at least one.
Grok family
- Grok-1 November 3, 2023
- Grok 3 February 19, 2025
- Grok 4.20 March, 2026
- Grok 4.20 Multi-agent March, 2026
- Grok 4.5 July 8, 2026
- Grok 4.6 August 12, 2026
- Grok 4.7 September 21, 2026
What changed from Grok 4.20
Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.
Not comparable: Context window (not disclosed for both releases); Parameters (not disclosed for both releases); Capabilities and modalities (not researched on both releases)
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See Grok 4.5 on the interactive timeline →