Model Comparison
K3
vs. Gemini 3.1 Pro Preview
Comparing 2 AI models · 7 benchmarks · Kimi, Google
Recommended Pick
GoGemini 3.1 Pro Preview9 metric winsStrongest on: Value, Input price, Output price
Best Value
Gemini 3.1 Pro Preview
100.0 value score
61.8 reasoning / $4.50/1M
Lowest Price
Gemini 3.1 Pro Preview
$2.00/1M input price
Best Reasoning
K3
65.0 reasoning score
Blends available reasoning benchmarks
Best for Coding
K3
76.2 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
Gemini 3.1 Pro Preview has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Gemini 3.1 Pro Preview is 1.5x cheaper on input tokens than K3.
Speed gap
Gemini 3.1 Pro Preview generates about 2.2x as many tokens per second as K3.
Reasoning gap
K3 leads Gemini 3.1 Pro Preview by 3.2 points on reasoning.
Coding gap
K3 leads Gemini 3.1 Pro Preview by 7.4 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
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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Gemini 3.1 Pro Preview
TTFT
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Time
—
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 | Ki K3 | Top Pick Go Gemini 3.1 Pro Preview |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $3.00/1M | $2.00/1M |
| Output Cost | $15.00/1M | $12.00/1M |
| Blended (3:1) | $6.00/1M | $4.50/1M |
| Specifications | ||
| Organization | Kimi | |
| Release Date | Jul 16, 2026 | Feb 19, 2026 |
| Performance & Speed | ||
| Throughput | 58.5 tok/s | 126.0 tok/s |
| TTFT | 1348ms | 22543ms |
| Latency | 35534ms | 22543ms |
| Composite Indices | ||
| Value Score | 78.9 | 100.0 |
| Reasoning Score | 65.0 | 61.8 |
| Intelligence | 57.1 | 46.5 |
| Coding | 76.2 | 68.8 |
| Standard Benchmarks | ||
| GPQA | 93.5% | 94.1% |
| HLE | 44.3% | 44.7% |
| SciCode | 58.7% | 58.9% |
| LCR | 74.7% | 72.7% |
| IFBench | — | 77.1% |
| TAU-bench v2 | — | 95.6% |
| TerminalBench Hard | — | 53.8% |
Key Takeaways
Gemini 3.1 Pro Preview offers the best value at $2.00/1M,making it ideal for high-volume applications and cost-conscious projects.
K3 has the strongest reasoning profile with a 65.0 reasoning score,combining the available reasoning-heavy benchmarks.
K3 reaches a 76.2 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
K3
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
Gemini 3.1 Pro Preview
- Cost-sensitive applications
- High-volume processing
