Grok 4.5
xAI · Multimodal · Released Jul 2026
Grok 4.5 is xAI's intermediate reasoning model with a 500k token context window, positioned between the coding-focused Grok Build 0.1 and the frontier Grok 4.6.
- Strengths
- Handles tasks requiring extended reasoning over long documents or conversations while maintaining balanced performance across general language capabilities.
- Best for
- Applications needing substantial context windows — such as document analysis, multi-turn conversations, or code review across large files — where Grok Build 0.1 would be insufficient but Grok 4.6 would be overkill.
- Limitations
- Superseded by Grok 4.6, which offers the same context window size with improved reasoning capabilities; for coding tasks, Grok Build 0.1 is the specialist alternative.
Input / 1M
$2.00
Output / 1M
$6.00
Cached input / 1M
$0.3
Context window
500K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in — out —
- 90d
- in decreased 0.0% out decreased 0.0%
- 1y
- in decreased 0.0% out decreased 0.0%
- Since launch
- in decreased 0.0% out decreased 0.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 19 Jul 2026 | $2.00 | $6.00 | $0.3 | Imported from OpenRouter | openrouter.ai |
| 9 Jul 2026 | $2.00 | $6.00 | $0.5 | Imported from OpenRouter | openrouter.ai |