Step-2 16k Exp vs GPT-5.6 Sol
Step-2 16k Exp is cheaper on output tokens, while GPT-5.6 Sol offers a larger context window. Choose Step-2 16k Exp or GPT-5.6 Sol based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Step-2 16k Exp | GPT-5.6 Sol |
|---|---|---|
| Provider | NanoGPT | OpenAI |
| Input / 1M tokens | $7.00 | $4.00 |
| Output / 1M tokens | $19.99 | $20.00 |
| Context window | 16K | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Jul 2024 | — |
| LMArena (Chatbot Arena) Elo score | 1321 | 1457 |
| LMArena WebDev Elo score | — | 1616 |
| LMArena Vision Elo score | — | 1281 |
| GPQA Diamond score | — | 93.5 |
| Epoch Capabilities Index score | — | 163 |
FAQ
Is Step-2 16k Exp or GPT-5.6 Sol cheaper?
Step-2 16k Exp is cheaper on output tokens ($19.99 vs $20.00 per 1M).
Which has the larger context window, Step-2 16k Exp or GPT-5.6 Sol?
GPT-5.6 Sol has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.