GPT-5.3 Codex Spark vs OpenAI: GPT Chat Latest
GPT-5.3 Codex Spark is cheaper on output tokens, while OpenAI: GPT Chat Latest offers a larger context window. Choose GPT-5.3 Codex Spark or OpenAI: GPT Chat Latest based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.3 Codex Spark | OpenAI: GPT Chat Latest |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $1.75 | $5.00 |
| Output / 1M tokens | $14.00 | $30.00 |
| Context window | 128K | 400K |
| Parameters | — | — |
| Open weights | No | — |
| Released | Feb 2026 | — |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.