Model Comparison
Qwen3 4B 2507 Instruct
vs. Qwen3.5 0.8B (Reasoning)
Comparing 2 AI models · 10 benchmarks · Alibaba
Recommended Pick
AlQwen3 4B 2507 Instruct8 metric winsStrongest on: Reasoning, Intelligence, GPQA
Lowest Price
Qwen3 4B 2507 Instruct
$0.00/1M input price
Best Reasoning
Qwen3 4B 2507 Instruct
33.6 reasoning score
Blends available reasoning benchmarks
Best for Coding
Qwen3.5 0.8B (Reasoning)
0.0 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Reasoning gap
Qwen3 4B 2507 Instruct leads Qwen3.5 0.8B (Reasoning) by 27.7 points on reasoning.
Top-pick rationale
Qwen3 4B 2507 Instruct wins 8 measurable categories, including Reasoning, Intelligence, GPQA, HLE.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Qwen3 4B 2507 Instruct
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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Qwen3.5 0.8B (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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Which answer was more useful?
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Full Comparison
| Metric | Top Pick Al Qwen3 4B 2507 Instruct | Al Qwen3.5 0.8B (Reasoning) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.00/1M |
| Output Cost | $0.00/1M | $0.00/1M |
| Specifications | ||
| Organization | Alibaba | Alibaba |
| Release Date | Aug 6, 2025 | Mar 2, 2026 |
| Performance & Speed | ||
| Throughput | — | — |
| TTFT | — | — |
| Latency | — | — |
| Composite Indices | ||
| Reasoning Score | 33.6 | 5.9 |
| Intelligence | 7.1 | 5.5 |
| Coding | — | 0.0 |
| Math | 52.3 | — |
| Standard Benchmarks | ||
| GPQA | 51.7% | 11.1% |
| MMLU Pro | 67.2% | — |
| HLE | 4.7% | 1.2% |
| LiveCodeBench | 37.7% | — |
| AIME 2025 | 52.3% | — |
| SciCode | 18.1% | 0.0% |
| LCR | 7.3% | 5.3% |
| IFBench | 33.5% | 21.5% |
| TAU-bench v2 | 26.6% | 47.7% |
| TerminalBench Hard | 4.5% | 0.0% |
Key Takeaways
Qwen3 4B 2507 Instruct offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Qwen3 4B 2507 Instruct has the strongest reasoning profile with a 33.6 reasoning score,combining the available reasoning-heavy benchmarks.
Qwen3.5 0.8B (Reasoning) reaches a 0.0 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
Qwen3 4B 2507 Instruct
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Qwen3.5 0.8B (Reasoning)
- Code generation
- Software development
