Comparison
Gemini 3.5 Flash vs Grok 4.3
Gemini 3.5 Flash charges 17% more per input token than Grok 4.3. Grok 4.3 is 72% cheaper on output tokens. Gemini 3.5 Flash accepts more context per request than Grok 4.3.
| Field | Gemini 3.5 Flash | Grok 4.3 |
|---|---|---|
| Provider | xAI | |
| Context window | 1M | 1M |
| Max output | 65.5K | — |
| Input / 1M | $1.50 | $1.2517% cheaper |
| Output / 1M | $9.00 | $2.5072% cheaper |
| Cached input / 1M | $0.1525% cheaper | $0.20 |
| Batch discount | 50% | — |
| Release date | — | — |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | Gemini 3.5 Flash | Grok 4.3 |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $300.00 | $150.00cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $459.00 | $277.50cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $217.50 | $143.75cheaper |
Gemini 3.5 Flash vs Grok 4.3 FAQ
- Is Gemini 3.5 Flash cheaper than Grok 4.3?
- Gemini 3.5 Flash costs $1.50 per 1M input tokens versus $1.25 for Grok 4.3 — Grok 4.3 is 20% cheaper per input token.
- Which is cheaper for output tokens, Gemini 3.5 Flash or Grok 4.3?
- Gemini 3.5 Flash charges $9.00 per 1M output tokens; Grok 4.3 charges $2.50 per 1M output tokens.
- Which has the larger context window, Gemini 3.5 Flash or Grok 4.3?
- Gemini 3.5 Flash does, with a 1,048,576-token context window.
- Do Gemini 3.5 Flash and Grok 4.3 offer cache pricing?
- Gemini 3.5 Flash discounts cached input to $0.15 per 1M tokens. Grok 4.3 discounts cached input to $0.20 per 1M tokens.
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