Model Comparison
Claude Opus 5.5 (Max, Default Fallback)
vs. Gemini 4 Carbon (Medium)
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 · Anthropic, Google
Recommended Pick
Strongest on: Value, Throughput, Reasoning
Best Value
Claude Opus 5.5 (Max, Default Fallback)
100.0 value score
59.1 reasoning / $8.00/1M
Lowest Price
Claude Opus 5.5 (Max, Default Fallback)
$4.00/1M input price
Best Reasoning
Claude Opus 5.5 (Max, Default Fallback)
59.1 reasoning score
Blends available reasoning benchmarks
Differences That Matter
Best value
Claude Opus 5.5 (Max, Default Fallback) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Speed gap
Claude Opus 5.5 (Max, Default Fallback) generates about 1.1x as many tokens per second as Gemini 4 Carbon (Medium).
Reasoning gap
Claude Opus 5.5 (Max, Default Fallback) leads Gemini 4 Carbon (Medium) by 0.8 points on reasoning.
Top-pick rationale
Claude Opus 5.5 (Max, Default Fallback) wins 4 measurable categories, including Value, Throughput, Reasoning, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
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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Gemini 4 Carbon (Medium)
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 An Claude Opus 5.5 (Max, Default Fallback) | Go Gemini 4 Carbon (Medium) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $4.00/1M | $4.00/1M |
| Output Cost | $20.00/1M | $20.00/1M |
| Blended (3:1) | $8.00/1M | $8.00/1M |
| Specifications | ||
| Organization | Anthropic | |
| Release Date | Sep 22, 2026 | Oct 28, 2026 |
| Performance & Speed | ||
| Throughput | 94.6 tok/s | 85.8 tok/s |
| TTFT | 663560ms | 26790ms |
| Latency | 663560ms | 26790ms |
| Composite Indices | ||
| Value Score | 100.0 | 98.6 |
| Reasoning Score | 59.1 | 58.3 |
| Intelligence | 59.1 | 58.3 |
Key Takeaways
Claude Opus 5.5 (Max, Default Fallback) offers the best value at $4.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Claude Opus 5.5 (Max, Default Fallback) has the strongest reasoning profile with a 59.1 reasoning score,combining the available reasoning-heavy benchmarks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Claude Opus 5.5 (Max, Default Fallback)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Gemini 4 Carbon (Medium)
- General-purpose AI
- Versatile applications