Gemini 3.6 Flash vs Grok 4.3 — Price, Context, and Capability Compared
Verdict
Gemini 3.6 Flash costs 2.2× more per blended million tokens than Grok 4.3. Gemini 3.6 Flash has the larger context window (1,000,000 tokens). Default to Grok 4.3 unless you specifically need Gemini 3.6 Flash's edge.
Spec comparison
| Gemini 3.6 Flash | Grok 4.3 | |
|---|---|---|
| Price (input) | $1.50/M | $1.25/M ✓ |
| Price (output) | $9.00/M | $2.50/M ✓ |
| Blended price | $3.38/M | $1.56/M ✓ |
| Context window | 1,000,000 tokens | 1,000,000 tokens |
| Max output | 64,000 tokens | 64,000 tokens |
| Modalities | text, vision, audio | text, vision |
| Reasoning mode | Yes | Yes |
| Released | 2026-06 | 2026-06 |
| Speed | 114 t/s ✓ | 98 t/s |
Cost at scale (3:1 blended)
| Tokens / month | Gemini 3.6 Flash | Grok 4.3 | Delta |
|---|---|---|---|
| 1,000,000 | $3.38 | $1.56 | $1.81 (2.2×) |
| 10,000,000 | $33.75 | $15.63 | $18.13 (2.2×) |
| 100,000,000 | $337.50 | $156.25 | $181.25 (2.2×) |
Choose Gemini 3.6 Flash if…
- ✓Faster than Gemini 3.5 Flash
- ✓Top-tier coding and agentic performance for its price
- ✓1M-token context
- ✓Latency-sensitive coding and agentic tasks that still need a huge context window.
Choose Grok 4.3 if…
- ✓xAI’s general-purpose flagship
- ✓Extremely fast for its size
- ✓1M-token context
- ✓General-purpose work where speed and a huge context window both matter.
Run this exact matchup right now
Send the same prompt to Gemini 3.6 Flash and Grok 4.3 side by side and see the outputs yourself.
Try Gemini 3.6 Flash vs Grok 4.3 FreeFAQ
Is Gemini 3.6 Flash cheaper than Grok 4.3?
Grok 4.3 is cheaper, at $1.56 per million blended tokens vs $3.38 for Gemini 3.6 Flash.
Which has the bigger context window, Gemini 3.6 Flash or Grok 4.3?
Both models support 1,000,000 tokens of context.
Can Gemini 3.6 Flash replace Grok 4.3 for coding?
Both are viable for coding. Faster than Gemini 3.5 Flash (Gemini 3.6 Flash) vs xAI’s general-purpose flagship (Grok 4.3) — pick based on which strength matters more for your workload.
Which is faster, Gemini 3.6 Flash or Grok 4.3?
Gemini 3.6 Flash is faster: 114 t/s vs 98 t/s, measured on our speed benchmarks.
Related
Pricing verified 2026-05-19. Specs verified 2026-08-08.
