GPT-5.3-Codex is cheaper than Claude 3 Sonnet at $1.75/M vs $3/M input tokens.
| Spec | Claude 3 Sonnet | GPT-5.3-Codex |
|---|---|---|
| Input price | $3/M tokens | $1.75/M tokens |
| Output price | $15/M tokens | $14/M tokens |
| Context window | — | 400K tokens |
| Released | Mar 2024 | Feb 2026 |
Not enough votes to call it. On the specs, GPT-5.3-Codex has the edge: bigger model tier, newer, bigger context window.
GPT-5.3-Codex is cheaper on both — 1.7× input, 1.1× output
GPT-5.3-Codex uses 654.6x more bold
GPT-5.3-Codex is cheaper than Claude 3 Sonnet at $1.75/M vs $3/M input tokens.
| Spec | Claude 3 Sonnet | GPT-5.3-Codex |
|---|---|---|
| Input price | $3/M tokens | $1.75/M tokens |
| Output price | $15/M tokens | $14/M tokens |
| Context window | — | 400K tokens |
| Released | Mar 2024 | Feb 2026 |
Not enough votes to call it. On the specs, GPT-5.3-Codex has the edge: bigger model tier, newer, bigger context window.
GPT-5.3-Codex is cheaper on both — 1.7× input, 1.1× output
GPT-5.3-Codex uses 654.6x more bold