Grok 4.5
xAIUpdated August 2026. Grok 4.5 by xAI: $2.00/M cache-miss input, $6.00/M output tokens. Cached input: $0.3/M. Long-context pricing above 200K input tokens: $4.00/M input, $12.00/M output. 500K context. Vision & Function Calling. Free calculator + compare 40+ models.
Input Price
$2.00
cache miss / 1M tokens
Cached Input
$0.3
per 1M tokens
Output Price
$6.00
per 1M tokens
Context Window
500K
tokens
Specifications
| Provider | xAI |
| Model ID | grok-4.5 |
| Input Price | $2.00 / 1M cache-miss tokens |
| Cached Input Price | $0.3 / 1M tokens |
| Output Price | $6.00 / 1M tokens |
| Long Context Threshold | 200K input tokens |
| Long Context Pricing | $4.00 / 1M cache-miss input, $0.6 / 1M cached input, $12.00 / 1M output |
| Context Window | 500K tokens |
| Max Output | Not published by provider |
| Capabilities | textvisionfunction_callingstructured_output |
| Release Date | 2026-07-08 |
| Pricing Source | Official xAI pricing |
| Price Verified | 2026-08-01 · Grok 4.5 cached-input pricing was corrected to $0.30/M below 200K tokens and $0.60/M above it. |
| Notes | Current xAI frontier model for coding, agentic tasks, and knowledge work. xAI does not publish a separate maximum-output limit; requests above 200K tokens use long-context pricing. |
Monthly Cost Estimates
Estimated monthly costs based on different daily usage levels (assuming 50% input / 50% output split). Input estimates use cache-miss pricing, so cache-heavy workloads can be lower.
| Daily Tokens | Monthly Cost | Annual Cost |
|---|---|---|
| 10K | $1.20 | $14.40 |
| 50K | $6.00 | $72.00 |
| 100K | $12.00 | $144.00 |
| 500K | $60.00 | $720.00 |
| 1.0M | $120.00 | $1440.00 |
About Grok 4.5
Grok 4.5 is a large language model by xAI. It features a 500K token context window; the provider does not publish a separate maximum-output limit. The model supports 4 capabilities: text, vision, function_calling, structured_output.
At $2.00 per million cache-miss input tokens and $6.00 per million output tokens, Grok 4.5 is positioned as a mid-range option in the xAI lineup. Repeated prefix input can be charged at $0.3 per million cached tokens. Use our Token Counter to estimate how many tokens your prompts use, and our Pricing Calculator to compare costs across all models.
Grok 4.5 Key Details
- Pricing: $2.00/M cache-miss input tokens, $0.3/M cached input tokens, $6.00/M output tokens
- Context window: 500K tokens — suitable for large documents and codebases
- Max output: not separately published by the provider
- Capabilities: text, vision, function_calling, structured_output
- Highlights: Current xAI frontier model for coding, agentic tasks, and knowledge work. xAI does not publish a separate maximum-output limit; requests above 200K tokens use long-context pricing.
- Released: 2026-07-08
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FAQ
How much does Grok 4.5 cost?
Grok 4.5 costs $2.00 per million cache-miss input tokens and $6.00 per million output tokens. Cached input costs $0.3 per million tokens. For a typical workload of 100K input tokens/day and 50K output tokens/day, expect approximately $15.00/month before cache-hit savings.
What is Grok 4.5's context window?
Grok 4.5 supports a context window of 500K tokens. This means your combined input prompt and output response can be up to 500K tokens. xAI does not publish a separate maximum-output limit for this model.
Is Grok 4.5 good for my use case?
Grok 4.5 supports text, vision, function_calling, structured_output. As a mid-range model, it balances capability and cost for most production use cases. Use our Pricing Calculator to compare with alternatives.