Qwen3.5-4B
ModelOpen sourceActiveby Alibaba (Qwen) · family “qwen3b”
Epoch Capabilities Index
Not scored by Epoch AI
Released
24 Feb 2026
Context window
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Max output
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Input $ / 1M tokens
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Output $ / 1M tokens
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Cached input $ / 1M
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Each benchmark shown separately with its own source
Benchmark results (1)
| Benchmark | Domain | Score | vs best recorded | Setting | Run | Source |
|---|---|---|---|---|---|---|
| OTIS Mock AIME 2024-2025 | math | 55.8% ±6.2 | 56% | none | 28 Aug 2026 | Eval log ↗ |
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
API list price over time
Price history
$ per 1M tokens
No data recorded for this period
0 observations (OpenRouter listing). History accumulates with every ingest run; a single point means no change has been observed yet.
Events
- Benchmark32d agoEpoch AI evaluates Qwen3.5-4BEpoch AI Benchmarking Hub
- Open release7mo agoAlibaba releases Qwen3.5-4BEpoch AI Benchmarking Hub