Grok 4.5 pricing & benchmarks
Grok 4.5 is available from xAI at $2.00 per million input tokens and $6.00 per million output tokens ($3.00 blended at 3:1). It accepts up to 500,000 tokens of context. Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Pricing
Per million tokens · OpenRouter
Input$2.00
Output$6.00
Blended (3:1)$3.00
Specification
x-ai/grok-4.5
Context window500K
Max output—
ReleasedJul 2026
LicenceProprietary
Modalitiesin:text, in:image, in:file, out:text
Benchmarks
Independently run — not vendor self-reports. Every score links its source.
| Benchmark | Score | Config | Run | Source |
|---|---|---|---|---|
| GPQA Diamond | 93.4% ±1.4 | high effort | 2026-07-08 | Independently run · Epoch AI |
| FrontierMath T1–3 | 57.2% ±2.9 | high effort | 2026-07-09 | Independently run · Epoch AI |
| FrontierMath T4 | 24.4% ±6.8 | high effort | 2026-07-09 | Independently run · Epoch AI |
| SimpleQA Verified | 53.5% ±1.6 | high effort | 2026-07-08 | Independently run · Epoch AI |
| OTIS Mock AIME | 97.8% ±1.3 | high effort | 2026-07-08 | Independently run · Epoch AI |
Scores published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0.
Where to run Grok 4.5
4 options across 1 provider · 2.0× between cheapest and dearest. Blended at 3:1. ⚠ marks an option serving less context than the best available, or re-pricing above a prompt-length threshold. Bracketed labels are the provider's own service tier or region.
| Host | Blended $/1M | In / Out | Context | Uptime 24h |
|---|---|---|---|---|
| xAI (zdr) ⚠ re-prices above 200K prompt tokens ($4.00/$12.00) |
$3.00 | $2.00 / $6.00 | 500K | 100.0% |
| xAI ⚠ re-prices above 200K prompt tokens ($4.00/$12.00) |
$3.00 | $2.00 / $6.00 | 500K | 99.9% |
| xAI (zdr/priority) ⚠ re-prices above 200K prompt tokens ($8.00/$24.00) |
$6.00 | $4.00 / $12.00 | 500K | 100.0% |
| xAI (priority) ⚠ re-prices above 200K prompt tokens ($8.00/$24.00) |
$6.00 | $4.00 / $12.00 | 500K | 99.9% |
Host prices and uptime from OpenRouter, synced 2026-08-08.
Subscriptions that include Grok 4.5
Consumer plans whose published model list names this model
Compare Grok 4.5
FAQ
How much does Grok 4.5 cost?
Grok 4.5 costs $2.00 per million input tokens and $6.00 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $3.00 per million tokens.
What is Grok 4.5's context window?
Grok 4.5 accepts up to 500,000 tokens of context.
How good is Grok 4.5 on benchmarks?
Grok 4.5 scores 93.4% on GPQA Diamond, independently run and published by Epoch AI. 5 benchmark results are listed on this page, each with its run date and source.