Gemini 3.5 Flash Lite vs Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible))
Both have similar output pricing, while Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) offers a larger context window. Choose Gemini 3.5 Flash Lite or Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Gemini 3.5 Flash Lite | Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) |
|---|---|---|
| Provider | LLM Gateway | |
| Input / 1M tokens | $0.30 | $1.25 |
| Output / 1M tokens | $2.50 | $2.50 |
| Context window | 1M | 2M |
| Parameters | — | — |
| Open weights | — | No |
| Released | — | Mar 2026 |
| GPQA Diamond score | 83.3 | — |
| Epoch Capabilities Index score | 145 | — |
| LMArena (Chatbot Arena) Elo score | 1435 | — |
| LMArena WebDev Elo score | 1440 | — |
| LMArena Vision Elo score | 1268 | — |
FAQ
Is Gemini 3.5 Flash Lite or Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) cheaper?
Gemini 3.5 Flash Lite and Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) have comparable output pricing.
Which has the larger context window, Gemini 3.5 Flash Lite or Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible))?
Grok 4.20 Non-Reasoning (Vertex AI (OpenAI-compatible)) has the larger context window (2M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.