GPT OSS 120B vs Solar Pro 4
Both have similar output pricing, while Solar Pro 4 offers a larger context window. Choose GPT OSS 120B or Solar Pro 4 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT OSS 120B | Solar Pro 4 |
|---|---|---|
| Provider | Neon | Upstage |
| Input / 1M tokens | $0.15 | $0.15 |
| Output / 1M tokens | $0.60 | $0.60 |
| Context window | 131K | 524K |
| Parameters | 117B | — |
| Open weights | Yes | — |
| Released | Aug 2025 | — |
| LiveBench score | 46.4 | — |
| Aider Polyglot score | 41.8 | — |
| LMArena (Chatbot Arena) Elo score | — | 1388 |
| LMArena WebDev Elo score | — | 1371 |
FAQ
Is GPT OSS 120B or Solar Pro 4 cheaper?
GPT OSS 120B and Solar Pro 4 have comparable output pricing.
Which has the larger context window, GPT OSS 120B or Solar Pro 4?
Solar Pro 4 has the larger context window (524K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.