Model Comparison
Claude Sonnet 5.5 (Max, Default Fallback)
vs. K3.1 Pro
Comparing 2 AI models · 0 benchmarks · Anthropic, Kimi
Recommended Pick
AnClaude Sonnet 5.5 (Max, Default Fallback)4 metric winsStrongest on: Value, Throughput, Reasoning
Best Value
Claude Sonnet 5.5 (Max, Default Fallback)
100.0 value score
56.0 reasoning / $4.00/1M
Lowest Price
Claude Sonnet 5.5 (Max, Default Fallback)
$2.00/1M input price
Best Reasoning
Claude Sonnet 5.5 (Max, Default Fallback)
56.0 reasoning score
Blends available reasoning benchmarks
Differences That Matter
Best value
Claude Sonnet 5.5 (Max, Default Fallback) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Speed gap
Claude Sonnet 5.5 (Max, Default Fallback) generates about 3.4x as many tokens per second as K3.1 Pro.
Reasoning gap
Claude Sonnet 5.5 (Max, Default Fallback) leads K3.1 Pro by 0.9 points on reasoning.
Top-pick rationale
Claude Sonnet 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 Sonnet 5.5 (Max, Default Fallback)
Anthropic
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
K3.1 Pro
Kimi
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Secure AI Chat made in Europe
Use open-weight models like DeepSeek, Qwen and Kimi in one app.
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 | Top Pick An Claude Sonnet 5.5 (Max, Default Fallback) | Ki K3.1 Pro |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $2.00/1M | $2.00/1M |
| Output Cost | $10.00/1M | $10.00/1M |
| Blended (3:1) | $4.00/1M | $4.00/1M |
| Specifications | ||
| Organization | Anthropic | Kimi |
| Release Date | Sep 28, 2026 | Oct 23, 2026 |
| Performance & Speed | ||
| Throughput | 140.1 tok/s | 41.4 tok/s |
| TTFT | 466370ms | 2890ms |
| Latency | 466370ms | 51160ms |
| Composite Indices | ||
| Value Score | 100.0 | 98.4 |
| Reasoning Score | 56.0 | 55.1 |
| Intelligence | 56.0 | 55.1 |
Key Takeaways
Claude Sonnet 5.5 (Max, Default Fallback) offers the best value at $2.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Claude Sonnet 5.5 (Max, Default Fallback) has the strongest reasoning profile with a 56.0 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 Sonnet 5.5 (Max, Default Fallback)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
K3.1 Pro
- General-purpose AI
- Versatile applications
Recommended Comparisons
Popular alternatives
