Compare / head-to-head
Qwen3 4B Instruct 2507vsQwen3.5 4B
Qwen3.5 4B leads 6 of 6 shared benchmarks. Both offer a 262K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 6
Qwen3.5 4B leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 262K tokens
Providers
Qwen
same provider
Qwen3 4B Instruct 2507
Qwen · released 2025-08-06
text
- Context
- 262K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 18 · 7 core
Qwen3.5 4B
Qwen · released 2026-03-02
textvisionvideo
- Context
- 262K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 16 · 5 core
Quality
Benchmark matrix
6 shared · 12 only Qwen3 4B Instruct 2507 · 10 only Qwen3.5 4B| Benchmark | Qwen3 4B Instruct 2507 | Qwen3.5 4B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 6 | ||||
| GPQA Diamond | 45.8% ↗epoch run | 76.2% ↗ | -30.4 pt | Qwen3.5 4B |
| MMLU-Pro | 69.6% ↗ | 79.1% ↗ | -9.5 pt | Qwen3.5 4B |
| IFEval | 83.4% ↗ | 89.8% ↗ | -6.4 pt | Qwen3.5 4B |
| MMLU-Redux | 84.2% ↗ | 88.8% ↗ | -4.6 pt | Qwen3.5 4B |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 52.2% ↗epoch run | 55.8% ↗epoch run | -3.6 pt | Qwen3.5 4B |
| SuperGPQA | 42.8% ↗ | 52.9% ↗ | -10.1 pt | Qwen3.5 4B |
| Only Qwen3 4B Instruct 2507 reports · 12 | ||||
| Aider-Polyglot | 12.9% ↗ | not reported | — | — |
| AIME25 | 47.4% ↗ | not reported | — | — |
| Arena-Hard v2 | 43.4% ↗ | not reported | — | — |
| BFCL-v3 | 61.9% ↗ | not reported | — | — |
| Chess Puzzles (Epoch AI run) | 4% ↗epoch run | not reported | — | — |
| GPQA | 62% ↗ | not reported | — | — |
| HMMT25 | 31% ↗ | not reported | — | — |
| LiveBench 20241125 | 63% ↗ | not reported | — | — |
| LiveCodeBench v6 (25.02-25.05) | 35.1% ↗ | not reported | — | — |
| MultiPL-E | 76.8% ↗ | not reported | — | — |
| TAU2-Retail | 40.4% ↗ | not reported | — | — |
| ZebraLogic | 80.2% ↗ | not reported | — | — |
| Only Qwen3.5 4B reports · 10 | ||||
| BFCL-V4 | not reported | 50.3% ↗ | — | — |
| HMMT Feb 25 | not reported | 74% ↗ | — | — |
| IFBench | not reported | 59.2% ↗ | — | — |
| LiveCodeBench v6 | not reported | 55.8% ↗ | — | — |
| LongBench v2 | not reported | 50% ↗ | — | — |
| MMMLU | not reported | 76.1% ↗ | — | — |
| MMMU | not reported | 77.6% ↗ | — | — |
| MMMU-Pro | not reported | 66.3% ↗ | — | — |
| OSWorld-Verified | not reported | 35.6% ↗ | — | — |
| TAU2-Bench | not reported | 79.9% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Qwen3 4B Instruct 2507 minus Qwen3.5 4B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Qwen3 4B Instruct 2507 | Qwen3.5 4B | Edge |
|---|---|---|---|
| Context window | 262K tokens | 262K tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | — | — | — |
| Output price / 1M | — | — | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | — | — |
| Modalities | text | text · vision · video | Qwen3.5 4B |
| Released | 2025-08-06 | 2026-03-02 | — |
| Cited benchmark scores | 18 | 16 | — |
Reliability
Qwen status
Live from /statusMore matchups
Qwen3 4B Instruct 2507 vs …
Models sharing the most benchmarksMore matchups
Qwen3.5 4B vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Qwen3 4B Instruct 2507 and Qwen3.5 4B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.