Gemini 3 Flash Preview vs Grok 4.20
Gemini 3 Flash Preview costs 2.0x less per output token.
Which Is Cheaper?
At 1M tokens/mo
Gemini 3 Flash Preview: $2
Grok 4.20: $4
At 10M tokens/mo
Gemini 3 Flash Preview: $18
Grok 4.20: $40
At 100M tokens/mo
Gemini 3 Flash Preview: $175
Grok 4.20: $400
Which Performs Better?
| Test | Gemini 3 Flash Preview | Grok 4.20 |
|---|---|---|
| Structured Output | — | — |
| Strategic Analysis | — | — |
| Constrained Rewriting | — | — |
| Creative Problem Solving | — | — |
| Tool Calling | — | — |
| Faithfulness | — | — |
| Classification | — | — |
| Long Context | — | — |
| Safety Calibration | — | — |
| Persona Consistency | — | — |
| Agentic Planning | — | — |
| Multilingual | — | — |