xAI: Grok 4.20
🇺🇸 xAI · Grok 4.20
Overview
xAI: Grok 4.20 is a large language model API from xAI, part of its Grok 4.20 model family. Priced at $1.25 per million input tokens and $2.50 per million output tokens, it occupies the mid-range, balancing capability against running cost. Output tokens cost about 2× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 2M-token context window (≈3,000 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image, File input, so it can be applied to multimodal tasks rather than text alone. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.
| Dimension | Unit | Price (USD) |
|---|---|---|
| Input | per 1M tokens | $1.25 |
| Output | per 1M tokens | $2.50 |
| Cached Input | per 1M tokens | $0.200 |
| Web Search | per search | $0.0050 |
- Provider
- xAI
- Model Family
- Grok 4.20
- Version String
- x-ai/grok-4.20
- Status
- Active
- Modality
- Text, Image, File
- Context Window
- 2,000,000 tokens
- Output Limit
- — tokens
90-Day Price Trend
Input / Output price (USD per 1M tokens)
Past 90 days of records; every price change is shown here
| Date | Dimension | Price (USD) | Source |
|---|---|---|---|
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter | |
| Output | $2.50 | OpenRouter | |
| Input | $1.25 | OpenRouter | |
| Web Search | $0.0050 | OpenRouter | |
| Cached Input | $0.200 | OpenRouter |
Key Insights
Key data points from this page for quick reference and citation.
- xAI: Grok 4.20 Input price: $1.25/M tokens
- xAI: Grok 4.20 Output price: $2.5/M tokens
- Context window: 2,000,000 tokens
- Provider: xAI
- Model family: Grok 4.20
- Modalities: Text, Image, File
- Data source: OpenRouter, updated daily