Grok 4.6
by xAI · x-ai/grok-4.6 · #317 cheapest of 422 paid models
Prices updated Sep 20, 2026, 12:34 AM UTC · refreshed hourly
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5GPT-5.6 Sol
Pricing
Input
$2.00
per 1M tokens
Output
$6.00
per 1M tokens
Blended (3:1)
$3.00
3 input : 1 output
Cache read
$0.50
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for Grok 4.6 with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $3.00 | $0.21 | — |
| 50% | $2.44 | $0.135 | −36% |
| 90% | $1.99 | $0.075 | −64% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates (available for OpenAI / Anthropic / Google — not flagged for this creator). Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.0028 | $2.80 |
| Document summary | 8,000 | 1,000 | $0.022 | $22.00 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.072 | $72.00 |
| Long-context analysis | 150,000 | 5,000 | $0.33 | $330.00 |
Performance
Intelligence Index
44.3
AA composite quality
Coding Index
76.8
Math Index
—
Agentic Index
53.4
Output speed
58 tok/s
median
Time to first token
32.41s
median
Time to first answer
32.41s
after reasoning tokens
Artificial Analysis benchmarks
| Benchmark | Score |
|---|---|
| GPQA Diamond | 94.9% |
| Humanity's Last Exam | 42.9% |
| SciCode | 56.5% |
| AA-LCR (Long Context Reasoning) | 80.3% |
| Terminal-Bench 2.1 | 88.4% |
| τ³-Bench Banking | 50.7% |
Design Arena Elo
| Category | Elo |
|---|---|
| Website | 1,304 |
| Web apps | 1,264 |
| Full-stack | 1,273 |
| Mobile apps | 1,268 |
| Android native | 1,300 |
| UI components | 1,307 |
| Data viz | 1,303 |
| SVG | 1,263 |
| 3D | 1,305 |
| Game dev | 1,321 |
| Agentic game dev | 1,210 |
| HTML slides | 1,253 |
| Python→PPTX slides | 1,241 |
| Code categories | 1,309 |
| ASCII art | 1,297 |
Specs
Context window
500K
tokens
Max output
450K
tokens
Input modalities
text, image, file
Tokenizer
Grok