GPT-4o (Omni) is cheaper than Claude 2 at $2.5/M vs $11.02/M input tokens.
| Spec | Claude 2 | GPT-4o (Omni) |
|---|---|---|
| Input price | $11.02/M tokens | $2.5/M tokens |
| Output price | $32.68/M tokens | $10/M tokens |
| Context window | 100K tokens | 128K tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jun 2023 | May 2024 |
| MMLU | 78.5% (5-shot) | 88.7% |
Not enough votes to call it. On the specs, GPT-4o (Omni) has the edge: bigger model tier, newer.
GPT-4o (Omni) costs 3.3x less per token.
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GPT-4o (Omni) is cheaper on both: 4.4× input, 3.3× output.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
GPT-4o (Omni) uses 72.0x more hedging