xAI
Grok 4.5
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
At a glance
- Input / 1M
- $2
- Output / 1M
- $6
- Context
- 500K
- Max output
- 450K
- Intelligence
- 38.8
- Released
- Jul 2026
Pricing
Grok 4.5 API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $2 |
|---|---|
| Output tokensPer 1M tokens | $6 |
| Cached input (read)Per 1M tokens | $0.30 |
| Cache writePer 1M tokens | Not available |
| Long-context pricingPrompts above 200K tokens | $4 in / $12 out |
| Web searchPer request | $0.005 |
Chat message
2K in, 500 out
$7
per 1,000 requests
Coding task
30K in, 4K out
$84
per 1,000 requests
Long document summary
150K in, 2K out
$312
per 1,000 requests
Benchmarks
Grok 4.5 benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
38.8
Coding index
72.4
Agentic index
41.2
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 500K tokens
- Max output
- 450K tokens
- Input types
- File, Image, Text
- Output types
- Text
- Reasoning effort
- High, Medium, Low
- Release date
- July 8, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
Grok 4.5 vs other models
See how Grok 4.5 stacks up head to head on price, benchmarks, and features.
Grok 4.5 vs Grok 4.7
xAI vs xAI
See comparisonGrok 4.5 vs GLM 5.3
xAI vs Z.ai
See comparisonGrok 4.5 vs Grok 4.6
xAI vs xAI
See comparison
Grok 4.5 vs Gemini 3.8 Flash
xAI vs Google
See comparison
Grok 4.5 vs Qwen3.8 2.4T A95B
xAI vs Qwen
See comparisonGrok 4.5 vs Gemini 3.7 Flash
xAI vs Google
See comparisonAlternatives
Grok 4.5 alternatives
Similar models worth considering, and where each one has the edge.
xAI
Grok 4.7
Z.ai
GLM 5.3
xAI
Grok 4.6
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does Grok 4.5 cost?
Grok 4.5 costs $2 per 1M input tokens and $6 per 1M output tokens through the API. A typical chat message costs about $7 per 1,000 messages.
What is the context window of Grok 4.5?
Grok 4.5 accepts up to 500K tokens of input and can write up to 450K tokens in a single response.
What is the best alternative to Grok 4.5?
Grok 4.7 from xAI is a strong alternative. It offers: higher intelligence score, newer release.
Can I use Grok 4.5 alongside other models?
Yes. Shortcut Chat sends one prompt to Grok 4.5 and any other models you pick at the same time, so you can compare answers side by side.
Try Grok 4.5 next to every other model.
Use Grok 4.5 alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.