Model Comparison
Qwen3.5 27B (Reasoning)
vs. Reka Flash (Sep '24)
Comparing 2 AI models · 8 benchmarks · Alibaba, Reka AI
Recommended Pick
ReReka Flash (Sep '24)5 metric winsStrongest on: Value, Input price, Output price
Best Value
Reka Flash (Sep '24)
100.0 value score
29.6 reasoning / $0.35/1M
Lowest Price
Reka Flash (Sep '24)
$0.20/1M input price
Best Reasoning
Qwen3.5 27B (Reasoning)
47.3 reasoning score
Blends available reasoning benchmarks
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
Reka Flash (Sep '24) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Reka Flash (Sep '24) is 1.5x cheaper on input tokens than Qwen3.5 27B (Reasoning).
Reasoning gap
Qwen3.5 27B (Reasoning) leads Reka Flash (Sep '24) by 17.7 points on reasoning.
Top-pick rationale
Reka Flash (Sep '24) wins 5 measurable categories, including Value, Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Qwen3.5 27B (Reasoning)
Alibaba
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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Reka Flash (Sep '24)
Reka AI
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 | Al Qwen3.5 27B (Reasoning) | Top Pick Re Reka Flash (Sep '24) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.30/1M | $0.20/1M |
| Output Cost | $2.40/1M | $0.80/1M |
| Blended (3:1) | $0.82/1M | $0.35/1M |
| Specifications | ||
| Organization | Alibaba | Reka AI |
| Release Date | Feb 24, 2026 | Oct 4, 2024 |
| Performance & Speed | ||
| Throughput | 86.3 tok/s | 85.2 tok/s |
| TTFT | 1409ms | 1712ms |
| Latency | 24595ms | 1712ms |
| Composite Indices | ||
| Value Score | 67.8 | 100.0 |
| Reasoning Score | 47.3 | 29.6 |
| Intelligence | 33.8 | 6.3 |
| Standard Benchmarks | ||
| GPQA | 85.8% | — |
| HLE | 22.2% | — |
| MATH 500 | — | 52.9% |
| SciCode | 39.5% | — |
| LCR | 67.3% | — |
| IFBench | 75.6% | — |
| TAU-bench v2 | 93.9% | — |
| TerminalBench Hard | 32.6% | — |
Key Takeaways
Reka Flash (Sep '24) offers the best value at $0.20/1M,making it ideal for high-volume applications and cost-conscious projects.
Qwen3.5 27B (Reasoning) has the strongest reasoning profile with a 47.3 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
Qwen3.5 27B (Reasoning)
- Complex reasoning tasks
- Research & analysis
Reka Flash (Sep '24)
- Cost-sensitive applications
- High-volume processing
