GPT-5.3-Codex vs Nova Premier 1.0
OpenAI vs Amazon — benchmarks, pricing, and capabilities side by side.
- •GPT-5.3-Codex is cheaper ($1.75 vs $2.50 per 1M input)
- •Nova Premier 1.0 has a larger context window (1M)
| GPT-5.3-Codex | Nova Premier 1.0 | |
|---|---|---|
| Intelligence index | 91.5 | — |
| Developer | OpenAI | Amazon |
| Type | Multimodal | Multimodal |
| Access | API only | API only |
| Context window | 400,000 tokens | 1,000,000 tokens |
| Input price | $1.75 / 1M | $2.50 / 1M |
| Output price | $14.00 / 1M | $12.50 / 1M |
| Speed | 73 tok/s | — |
| Released | February 24, 2026 | October 31, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |