Claude Sonnet 4.6 vs Gemini 3.5 Flash API Price Comparison
Prices updated: ·35 quotes
As of : At official rates, Claude Sonnet 4.6 is $3.0000/1M input tokens and Gemini 3.5 Flash is $1.5000 — Gemini 3.5 Flash is ~50% cheaper than Claude Sonnet 4.6. Via relay providers, the lowest Claude Sonnet 4.6 rate is $0.0828 (dddAI) and Gemini 3.5 Flash is $0.0621 (TreeRouter). Context windows: Claude Sonnet 4.6 1024K, Gemini 3.5 Flash 1000K. Claude Sonnet 4.6 and Gemini 3.5 Flash support image input. 35 provider quotes tracked (Claude Sonnet 4.6: 21, Gemini 3.5 Flash: 14), updated daily.
Claude Sonnet 4.6Mid-tier
Official
$3.0000
/ 1M tokens
Best Price
$0.0828
/ 1M tokens
21 providers · 1024K Context · 👁 Vision
Gemini 3.5 FlashMid-tier
Official
$1.5000
/ 1M tokens
Best Price
$0.0621
/ 1M tokens
14 providers · 1000K Context · 👁 Vision
At official prices, Gemini 3.5 Flash is ~50% cheaper. At the best relay price, Gemini 3.5 Flash is ~25% cheaper.
Price Comparison
| Claude Sonnet 4.6 | Gemini 3.5 Flash | |
|---|---|---|
| Official input / 1M tokens | $3.0000 | $1.5000 ✓ |
| Official output / 1M tokens | $15.0000 | $9.0000 ✓ |
| Cheapest input / 1M tokens | $0.0828 | $0.0621 ✓ |
| Cheapest output / 1M tokens | $0.4138 | $0.3724 ✓ |
| providers | 21 | 14 |
| Context | 1024K | 1000K |
| Vision | ✓ | ✓ |
Claude Sonnet 4.6 — All Providers
Detail page →Gemini 3.5 Flash — All Providers
Detail page →Frequently Asked Questions
Which is cheaper, Claude Sonnet 4.6 or Gemini 3.5 Flash?
At official price, Gemini 3.5 Flash is cheaper by ~50%. At the best relay price, Gemini 3.5 Flash with a ~25% difference.
What context window do Claude Sonnet 4.6 and Gemini 3.5 Flash support?
Claude Sonnet 4.6 has a 1024K token context window; Gemini 3.5 Flash has 1000K tokens.
Do Claude Sonnet 4.6 and Gemini 3.5 Flash support image input?
Claude Sonnet 4.6 supports image input; Gemini 3.5 Flash supports image input.
What is the cheapest way to access Claude Sonnet 4.6 or Gemini 3.5 Flash?
Claude Sonnet 4.6's lowest input price is $0.0828/1M tokens (dddAI). Gemini 3.5 Flash's is $0.0621/1M tokens (TreeRouter). Relay providers typically offer lower prices with different SLA terms.
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