Grok 4.20 vs Gemini 3.7 Flash
Gemini 3.7 Flash is cheaper on output tokens ($1.875 vs $2.5 per 1M), and Grok 4.20 has the larger context window (2M). The best choice depends on your task — and with Vincony you don't have to pick just one.
| Spec | Grok 4.20 | Gemini 3.7 Flash |
|---|---|---|
| Provider | xAI | |
| Context window | 2M | 1.0M |
| Input price /1M | $1.25 | $0.375 |
| Output price /1M | $2.5 | $1.875 |
| Input | text, image, file | text, image, video, file, audio |
Prices are per 1M tokens, indicative pricing via OpenRouter (updated 2026-08-22); a provider's own list price may differ. Highlighted cells mark the cheaper price / larger context.
Frequently asked questions
Is Grok 4.20 or Gemini 3.7 Flash cheaper?
Gemini 3.7 Flash is cheaper on output tokens ($1.875 vs $2.5 per 1M). Input is $0.375 vs $1.25.
Which has a bigger context window, Grok 4.20 or Gemini 3.7 Flash?
Grok 4.20 has the larger context window at 2M tokens, versus 1.0M for the other.
Can I use both Grok 4.20 and Gemini 3.7 Flash in one place?
Yes. Vincony aggregates 800+ models — including Grok 4.20 and Gemini 3.7 Flash — into one interface with Compare Chat, so you can send the same prompt to both and compare outputs side by side on a single credit-based plan.