GPT-5.1-Codex-Mini is cheaper than Claude Sonnet 5 at $1.5/M vs $2/M input tokens.
| Spec | Claude Sonnet 5 | GPT-5.1-Codex-Mini |
|---|---|---|
| Input price | $2/M tokens | $1.5/M tokens |
| Output price | $10/M tokens | $6/M tokens |
| Context window | 1.0M tokens | 400K tokens |
| Released | Jun 2026 | Nov 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.1-Codex-Mini is cheaper on both — 1.3× input, 1.7× output
Claude Sonnet 5 uses 79.4x more emoji
GPT-5.1-Codex-Mini is cheaper than Claude Sonnet 5 at $1.5/M vs $2/M input tokens.
| Spec | Claude Sonnet 5 | GPT-5.1-Codex-Mini |
|---|---|---|
| Input price | $2/M tokens | $1.5/M tokens |
| Output price | $10/M tokens | $6/M tokens |
| Context window | 1.0M tokens | 400K tokens |
| Released | Jun 2026 | Nov 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.1-Codex-Mini is cheaper on both — 1.3× input, 1.7× output
Claude Sonnet 5 uses 79.4x more emoji