GPT Chat Latest vs GPT-5.5
GPT Chat Latest is the cheaper option on input; GPT Chat Latest is cheaper on output. Figures below are per million tokens, from vendor pricing cited in our reporting.
| GPT Chat Latest | GPT-5.5 | |
|---|---|---|
| Input per 1M tokens | $5 | $5 |
| Output per 1M tokens | $30 | $30 |
| Cached input per 1M | $0.50 | $0.50 |
| Context window | 400K tokens | 1.05M tokens |
| Parameters | — | — |
| Licence | ||
| Benchmark | — | — |
| Vendor | OpenAI | OpenAI |
| Released | — | — |
What the numbers say
- Input price gap: 0% ($5 vs $5).
- Blended three-to-one input/output rate: $45.00 for GPT Chat Latest, $45.00 for GPT-5.5.
- Context: 400K tokens against 1.05M tokens.
- Licence: GPT Chat Latest is ; GPT-5.5 is .