Grok 4.3 API Pricing Calculator
Compare what your prompts cost across every major LLM — with exact token counts for OpenAI models, right in your browser.
Prices verified 2026-07-24 · per 1M tokens · sources linked per provider
Input / 1M tokens
$1.25
Cached input / 1M
$0.2
Output / 1M tokens
$2.5
grok-4.3≥200k-token prompts: $2.50 in / $5 out.
At Grok 4.3's rates ($1.25 per 1M input tokens, $2.5 per 1M output), a call with 1,000 input and 500 output tokens costs $0.0025. At 10,000 requests a month, that workload runs $25.00. A heavier call — a 100,000-token prompt returning 2,000 tokens — costs $0.13.
Grok 4.3 is the cheapest xAI Grok model at this workload — Grok 4.5 costs 2.0× as much per call.
Cache-read input is billed at $0.2 per 1M tokens — 84% below the standard input rate, so a long system prompt reused across calls mostly bills at the discounted rate.
Grok 4.3's context window is 1,000,000 tokens. ≥200k-token prompts: $2.50 in / $5 out.
| Model | Cost / call | Cost / month | × best price |
|---|---|---|---|
| Grok 4.3cheapest | $0.00375 | $3.75 | — |
| Grok 4.5 | $0.008 | $8.00 | 2.1× |
More xAI Grok models: Grok 4.5 — or all xAI Grok pricing
Token counter
Token counts are exact for OpenAI models (tiktoken o200k_base, run in your browser). For other providers the count is an estimate — notably Claude Opus 4.7+/Sonnet 5 and similar newer models use a tokenizer that produces roughly 30% more tokens for the same text.
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