Gemini 2.5 Flash Preview 05-20 is cheaper than GPT-5.1-Codex at $0.15/M vs $1.25/M input tokens.
| Spec | Gemini 2.5 Flash Preview 05-20 | GPT-5.1-Codex |
|---|---|---|
| Input price | $0.15/M tokens | $1.25/M tokens |
| Output price | $0.6/M tokens | $10/M tokens |
| Context window | 1.0M tokens | 400K tokens |
| Released | May 2025 | Nov 2025 |
Not enough votes to call it. On the specs, GPT-5.1-Codex has the edge: bigger model tier, newer.
Gemini 2.5 Flash Preview 05-20 costs 17x less per token.
Gemini 2.5 Flash Preview 05-20 is cheaper on both — 8.3× input, 17× output
GPT-5.1-Codex uses 50.1x more headings
Gemini 2.5 Flash Preview 05-20 is cheaper than GPT-5.1-Codex at $0.15/M vs $1.25/M input tokens.
| Spec | Gemini 2.5 Flash Preview 05-20 | GPT-5.1-Codex |
|---|---|---|
| Input price | $0.15/M tokens | $1.25/M tokens |
| Output price | $0.6/M tokens | $10/M tokens |
| Context window | 1.0M tokens | 400K tokens |
| Released | May 2025 | Nov 2025 |
Not enough votes to call it. On the specs, GPT-5.1-Codex has the edge: bigger model tier, newer.
Gemini 2.5 Flash Preview 05-20 costs 17x less per token.
Gemini 2.5 Flash Preview 05-20 is cheaper on both — 8.3× input, 17× output
GPT-5.1-Codex uses 50.1x more headings