GPT-5.3-Codex vs IBM Watson
OpenAI vs IBM — benchmarks, pricing, and capabilities side by side.
| GPT-5.3-Codex | IBM Watson | |
|---|---|---|
| Intelligence index | 91.5 | — |
| Developer | OpenAI | IBM |
| Type | Multimodal | — |
| Access | API only | — |
| Context window | 400,000 tokens | — |
| Input price | $1.75 / 1M | — |
| Output price | $14.00 / 1M | — |
| Speed | 73 tok/s | — |
| Released | February 24, 2026 | February 16, 2011 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |