Google (Gemini) vs XAI (Grok): API Pricing Compared
Google (Gemini) vs XAI (Grok) — or XAI (Grok) vs Google (Gemini): each developer's priced lineup, cheapest model and highest-ECI model side by side, built from the same data as the per-developer pricing pages. This page does not rank the two developers.
Google (Gemini)
38 models with published pricing
$0.175–$31.50 per 1M tokens blended
Cheapest: Gemini 2.5 Flash-Lite at $0.175/1M blended
Highest ECI: Gemini 4 Argon (166.4)
XAI (Grok)
8 models with published pricing
$1.25–$3.00 per 1M tokens blended
Cheapest: Grok Build 0.1 at $1.25/1M blended
Highest ECI: Grok 4.6 (157.9)
Top priced models by ECI
Google (Gemini)
| Model | ECI | Blended $/1M |
|---|---|---|
| Gemini 4 Argon | 166.4 | $4.00 |
| Gemini 3.8 Flash | 158.6 | $1.50 |
| Gemini 3.7 Flash | 158.4 | $1.50 |
| Gemini 3.5 Flash | 155.2 | $3.375 |
| Gemini 3.6 Flash | 155.2 | $1.50 |
| Gemini 3.5 Flash Lite | 145.6 | $0.85 |
| Gemini 3.1 Flash Lite | 144.9 | $0.5625 |
| Deep Research Max Preview | — | $4.50 |
XAI (Grok)
| Model | ECI | Blended $/1M |
|---|---|---|
| Grok 4.6 | 157.9 | $3.00 |
| Grok 4.7 | 156.1 | $3.00 |
| Grok 4.5 | 155.1 | $3.00 |
| Grok 4.20 (Non-Reasoning) | — | $1.5625 |
| Grok 4.20 (Reasoning) | — | $1.5625 |
| Grok 4.3 | — | $1.5625 |
| Grok Build 0.1 | — | $1.25 |
| x-AI/Grok-Code-Fast 1 | — | $1.25 |
All Google (Gemini) pricing All XAI (Grok) pricing
FAQ
How many Google (Gemini) and XAI (Grok) models have published API pricing?
Google (Gemini) has 38 priced models, from $0.175 to $31.50 per 1M tokens blended. XAI (Grok) has 8 priced models, from $1.25 to $3.00 per 1M tokens blended.
What is the cheapest Google (Gemini) model and the cheapest XAI (Grok) model?
The cheapest Google (Gemini) model is Gemini 2.5 Flash-Lite at $0.175/1M blended tokens. The cheapest XAI (Grok) model is Grok Build 0.1 at $1.25/1M blended tokens.
Which Google (Gemini) and XAI (Grok) models have the highest ECI?
Google (Gemini)'s highest-ECI priced model is Gemini 4 Argon at 166.4; XAI (Grok)'s highest-ECI priced model is Grok 4.6 at 157.9. ECI is Epoch AI's Capabilities Index.
Where does the Google (Gemini) vs XAI (Grok) pricing data come from?
Prices come from models.dev and LiteLLM (open MIT-licensed catalogs) and ECI scores from Epoch AI (CC BY 4.0). This page states the numbers side by side and does not rank the two developers — see /data-sources/.