Synth 2.5 Pro Preview vs Qwen3 4B Instruct
Both have similar output pricing, while Qwen3 4B Instruct offers a larger context window. Choose Synth 2.5 Pro Preview or Qwen3 4B Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Synth 2.5 Pro Preview | Qwen3 4B Instruct |
|---|---|---|
| Provider | NanoGPT | Pioneer |
| Input / 1M tokens | $0.10 | $0.20 |
| Output / 1M tokens | $0.20 | $0.20 |
| Context window | 30K | 33K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Sep 2026 | Jul 2025 |
| GPQA Diamond score | — | 45.8 |
FAQ
Is Synth 2.5 Pro Preview or Qwen3 4B Instruct cheaper?
Synth 2.5 Pro Preview and Qwen3 4B Instruct have comparable output pricing.
Which has the larger context window, Synth 2.5 Pro Preview or Qwen3 4B Instruct?
Qwen3 4B Instruct has the larger context window (33K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.