Grok 4.3 API Pricing
xAI · released Apr 17, 2026 · 1M context · API model ID grok-4.3
Grok 4.3 by xAI API pricing: $1.25 per 1M input tokens and $2.50 per 1M output tokens (provider list price via models.dev, Oct 10, 2026).
Prices
| Price | USD per 1M tokens |
|---|---|
| Input | $1.25 |
| Output | $2.50 |
| Cache read | $0.20 |
| Cache write | Not published |
xAI's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation
Estimated monthly cost
$750.00
per month
- per day
- $25.00
- per request
- $0.0025
Cannot estimate: a needed price is not published.
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Long-context prices
Prompts longer than the threshold are billed at a higher rate.
| Prompts over | Input | Output | Cache read | Cache write |
|---|---|---|---|---|
| 200,000 tokens | $2.50 | $5.00 | $0.40 | Not published |
Monthly cost by workload
| Workload | Per month |
|---|---|
| Chatbot1,000 in / 500 out tokens, 10,000 requests a day | $750.00/mo |
| RAG8,000 in / 500 out tokens, 5,000 requests a day | $1,688/mo |
| Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input | $765.00/mo |
Context and capabilities
- Context
- 1,000,000 tokens
- Max output
- 30,000 tokens
- Input
- text, image, pdf
- Output
- text
- Knowledge cutoff
- Not published
- Open weights
- No
- Tool calling
- Yes
- Reasoning
- Yes
- Structured outputs
- Yes
Capabilities and limits as listed by models.dev.
Similarly priced models
- Gemini 3.8 Flash · $0.75 in / $3.75 out
- Grok Build 0.1 · $1.00 in / $2.00 out
- DeepSeek V4 Pro · $1.32 in / $3.96 out
- Muse Spark 1.3 · $1.25 in / $4.25 out
Price history
No price changes since we started tracking on Oct 8, 2026.
Questions
- How much does Grok 4.3 cost per month?
- For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, Grok 4.3 costs about $750.00 per month at xAI's list prices ($1.25 per 1M input tokens, $2.50 per 1M output tokens).
- Does Grok 4.3 support prompt caching?
- Yes. Cached input costs $0.20 per 1M tokens, compared with $1.25 for regular input.
- How long is Grok 4.3's context window?
- Grok 4.3 accepts up to 1,000,000 tokens (1M) of context and returns up to 30,000 tokens per response.