Model Comparison
Gemini 3.5 Flash (High)
vs. Claude Opus 5.5 (Max, Default Fallback)
Gemini 3.5 Flash (High) has not been available at LLMBase since 26 October 2026. Open alternative: DeepSeek V4.1 Flash →
Claude Opus 5.5 (Max, Default Fallback) has not been available at LLMBase since 26 October 2026. Open alternative: DeepSeek V4 Pro →
Comparing 2 AI models · 0 benchmarks · Google, Anthropic
Recommended Pick
GoGemini 3.5 Flash (High)6 metric winsStrongest on: Input price, Output price, Blended price
Lowest Price
Gemini 3.5 Flash (High)
$1.50/1M input price
Differences That Matter
Price gap
Gemini 3.5 Flash (High) is 2.7x cheaper on input tokens than Claude Opus 5.5 (Max, Default Fallback).
Speed gap
Gemini 3.5 Flash (High) generates about 2.0x as many tokens per second as Claude Opus 5.5 (Max, Default Fallback).
Top-pick rationale
Gemini 3.5 Flash (High) wins 6 measurable categories, including Input price, Output price, Blended price, Throughput.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Gemini 3.5 Flash (High)
TTFT
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Time
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tok/s
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Tokens
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Cost
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Claude Opus 5.5 (Max, Default Fallback)
Anthropic
TTFT
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Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
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Full Comparison
| Metric | Top Pick Go Gemini 3.5 Flash (High) | An Claude Opus 5.5 (Max, Default Fallback) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.50/1M | $4.00/1M |
| Output Cost | $9.00/1M | $20.00/1M |
| Blended (3:1) | $3.38/1M | $8.00/1M |
| Specifications | ||
| Organization | Anthropic | |
| Release Date | May 19, 2026 | Sep 22, 2026 |
| Performance & Speed | ||
| Throughput | 193.6 tok/s | 96.6 tok/s |
| TTFT | 16640ms | 722040ms |
| Latency | 16640ms | 722040ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | — | 58.4 |
| Intelligence | — | 58.4 |
Key Takeaways
Gemini 3.5 Flash (High) offers the best value at $1.50/1M,making it ideal for high-volume applications and cost-conscious projects.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Gemini 3.5 Flash (High)
- Cost-sensitive applications
- High-volume processing
Claude Opus 5.5 (Max, Default Fallback)
- General-purpose AI
- Versatile applications
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