Model Comparison
Gemini 4 Carbon (Medium)
vs. Claude Opus 5.5 (Max, Default Fallback)
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
Strongest on: Value, Throughput, Reasoning
Best Value
Claude Opus 5.5 (Max, Default Fallback)
100.0 value score
58.4 reasoning / $8.00/1M
Lowest Price
Gemini 4 Carbon (Medium)
$4.00/1M input price
Best Reasoning
Claude Opus 5.5 (Max, Default Fallback)
58.4 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.
Reasoning gap
Claude Opus 5.5 (Max, Default Fallback) leads Gemini 4 Carbon (Medium) by 0.7 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.
Gemini 4 Carbon (Medium)
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Claude Opus 5.5 (Max, Default Fallback)
Anthropic
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
EU-hosted open models, one API
Servers in Germany & Finland. Operated by a German company under the GDPR, DPA available, ISO 27001-certified data centres.
Full Comparison
| Metric | Go Gemini 4 Carbon (Medium) | Top Pick An Claude Opus 5.5 (Max, Default Fallback) |
|---|---|---|
| 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 | Oct 28, 2026 | Sep 22, 2026 |
| Performance & Speed | ||
| Throughput | 91.5 tok/s | 95.7 tok/s |
| TTFT | 27960ms | 612370ms |
| Latency | 27960ms | 612370ms |
| Composite Indices | ||
| Value Score | 98.8 | 100.0 |
| Reasoning Score | 57.7 | 58.4 |
| Intelligence | 57.7 | 58.4 |
Key Takeaways
Gemini 4 Carbon (Medium) 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 58.4 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
Gemini 4 Carbon (Medium)
- Cost-sensitive applications
- High-volume processing
Claude Opus 5.5 (Max, Default Fallback)
- Complex reasoning tasks
- Research & analysis