GPT-5.5 (OpenAI) vs Seed 1.6 Flash (250715) (ByteDance)
Seed 1.6 Flash (250715) (ByteDance) is cheaper on output tokens, while GPT-5.5 (OpenAI) offers a larger context window. Choose GPT-5.5 (OpenAI) or Seed 1.6 Flash (250715) (ByteDance) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.5 (OpenAI) | Seed 1.6 Flash (250715) (ByteDance) |
|---|---|---|
| Provider | LLM Gateway | LLM Gateway |
| Input / 1M tokens | $5.00 | $0.07 |
| Output / 1M tokens | $30.00 | $0.30 |
| Context window | 1.1M | 256K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Apr 2026 | Jul 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.