Grok 4.3
xAIUpdated June 2026. Grok 4.3 by xAI: $1.25/M cache-miss input, $2.50/M output tokens. Cached input: $0.2/M. 1.0M context, 131K max output. Vision & Function Calling. Free calculator + compare 40+ models.
Input Price
$1.25
cache miss / 1M tokens
Cached Input
$0.2
per 1M tokens
Output Price
$2.50
per 1M tokens
Context Window
1.0M
tokens
Specifications
| Provider | xAI |
| Model ID | grok-4.3 |
| Input Price | $1.25 / 1M cache-miss tokens |
| Cached Input Price | $0.2 / 1M tokens |
| Output Price | $2.5 / 1M tokens |
| Context Window | 1.0M tokens |
| Max Output | 131K tokens |
| Capabilities | textvisionfunction_callingstructured_output |
| Release Date | 2026-05 |
| Pricing Source | Official xAI pricing |
| Price Verified | 2026-06-14 |
| Notes | Current general-purpose xAI API model. Older Grok 3 and Grok 4 aliases route to the current model family. |
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 | $0.56 | $6.75 |
| 50K | $2.81 | $33.75 |
| 100K | $5.63 | $67.50 |
| 500K | $28.13 | $337.50 |
| 1.0M | $56.25 | $675.00 |
About Grok 4.3
Grok 4.3 is a large language model by xAI. It features a 1.0M token context window with up to 131K tokens of output per request. The model supports 4 capabilities: text, vision, function_calling, structured_output.
At $1.25 per million cache-miss input tokens and $2.5 per million output tokens, Grok 4.3 is positioned as a mid-range option in the xAI lineup. Repeated prefix input can be charged at $0.2 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 4.3 Key Details
- Pricing: $1.25/M cache-miss input tokens, $0.2/M cached input tokens, $2.5/M output tokens
- Context window: 1.0M tokens — one of the largest available
- Max output: 131K tokens per response
- Capabilities: text, vision, function_calling, structured_output
- Highlights: Current general-purpose xAI API model. Older Grok 3 and Grok 4 aliases route to the current model family.
- Released: 2026-05
Other xAI Models
Similar Price Range
Related Tools
FAQ
How much does Grok 4.3 cost?
Grok 4.3 costs $1.25 per million cache-miss input tokens and $2.5 per million output tokens. Cached input costs $0.2 per million tokens. For a typical workload of 100K input tokens/day and 50K output tokens/day, expect approximately $7.50/month before cache-hit savings.
What is Grok 4.3's context window?
Grok 4.3 supports a context window of 1.0M tokens. This means your combined input prompt and output response can be up to 1.0M tokens. The maximum output per response is 131K tokens.
Is Grok 4.3 good for my use case?
Grok 4.3 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.