Model Comparison
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
vs. K3
Comparing 2 AI models · 4 benchmarks · Anthropic, Kimi
Recommended Pick
AnClaude Opus 5 (Adaptive Reasoning, Xhigh Effort)8 metric winsStrongest on: Throughput, TTFT, Latency
Best Value
K3
100.0 value score
65.0 reasoning / $6.00/1M
Lowest Price
K3
$3.00/1M input price
Best Reasoning
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
68.8 reasoning score
Blends available reasoning benchmarks
Best for Coding
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
77.0 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
K3 has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
K3 is 1.7x cheaper on input tokens than Claude Opus 5 (Adaptive Reasoning, Xhigh Effort).
Speed gap
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) generates about 1.8x as many tokens per second as K3.
Reasoning gap
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) leads K3 by 3.8 points on reasoning.
Coding gap
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) leads K3 by 0.8 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
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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K3
Kimi
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 (Adaptive Reasoning, Xhigh Effort) | Ki K3 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $5.00/1M | $3.00/1M |
| Output Cost | $25.00/1M | $15.00/1M |
| Blended (3:1) | $10.00/1M | $6.00/1M |
| Specifications | ||
| Organization | Anthropic | Kimi |
| Release Date | Jul 24, 2026 | Jul 16, 2026 |
| Performance & Speed | ||
| Throughput | 60.4 tok/s | 33.1 tok/s |
| TTFT | 22558ms | 102958ms |
| Latency | 22558ms | 163432ms |
| Composite Indices | ||
| Value Score | 63.5 | 100.0 |
| Reasoning Score | 68.8 | 65.0 |
| Intelligence | 60.1 | 57.1 |
| Coding | 77.0 | 76.2 |
| Standard Benchmarks | ||
| GPQA | 93.7% | 93.5% |
| HLE | 52.5% | 44.3% |
| SciCode | 55.0% | 58.7% |
| LCR | 68.7% | 74.7% |
Key Takeaways
K3 offers the best value at $3.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) has the strongest reasoning profile with a 68.8 reasoning score,combining the available reasoning-heavy benchmarks.
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) reaches a 77.0 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
K3
- Cost-sensitive applications
- High-volume processing
