Qwen3.5 35B-A3B vs Llama-3.1-Nemotron-Ultra-253B-v1
Llama-3.1-Nemotron-Ultra-253B-v1 is cheaper on output tokens, while Qwen3.5 35B-A3B offers a larger context window. Choose Qwen3.5 35B-A3B or Llama-3.1-Nemotron-Ultra-253B-v1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Qwen3.5 35B-A3B | Llama-3.1-Nemotron-Ultra-253B-v1 |
|---|---|---|
| Provider | Alibaba | Nebius Token Factory |
| Input / 1M tokens | $0.25 | $0.60 |
| Output / 1M tokens | $2.00 | $1.80 |
| Context window | 262K | 128K |
| Parameters | — | — |
| Open weights | Yes | Yes |
| Released | Feb 2026 | Jan 2025 |
| LMArena (Chatbot Arena) Elo score | 1395 | 1319 |
| LMArena WebDev Elo score | 1254 | — |
| GPQA Diamond score | 83.5 | — |
| Epoch Capabilities Index score | 142 | — |
FAQ
Is Qwen3.5 35B-A3B or Llama-3.1-Nemotron-Ultra-253B-v1 cheaper?
Llama-3.1-Nemotron-Ultra-253B-v1 is cheaper on output tokens ($1.80 vs $2.00 per 1M).
Which has the larger context window, Qwen3.5 35B-A3B or Llama-3.1-Nemotron-Ultra-253B-v1?
Qwen3.5 35B-A3B has the larger context window (262K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.