GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...
Model details →OpenAI: GPT-4o vs Anthropic: Claude Opus Latest
OpenAI: GPT-4o and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
This model always redirects to the latest model in the Claude Opus family.
Model details →Side-by-side comparison
| Capability | OpenAI: GPT-4o | Anthropic: Claude Opus Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 128K | 1M | 🏆 Anthropic: Claude Opus Latest |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.50 | $5.00 | 🏆 OpenAI: GPT-4o |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $10.00 | $25.00 | 🏆 OpenAI: GPT-4o |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Anthropic: Claude Opus Latest |
Frequently asked questions
Is OpenAI: GPT-4o better than Anthropic: Claude Opus Latest?
OpenAI: GPT-4o and Anthropic: Claude Opus Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between OpenAI: GPT-4o and Anthropic: Claude Opus Latest?
Input: $2.50 vs $5.00 per 1M tokens. Output: $10.00 vs $25.00 per 1M tokens.
What context windows do OpenAI: GPT-4o and Anthropic: Claude Opus Latest support?
OpenAI: GPT-4o supports up to 128K tokens. Anthropic: Claude Opus Latest supports up to 1M tokens.
Do both OpenAI: GPT-4o and Anthropic: Claude Opus Latest support tool calling?
OpenAI: GPT-4o: yes. Anthropic: Claude Opus Latest: yes.
Compare OpenAI: GPT-4o with other models
vs Anthropic Claude Haiku Latestvs Anthropic Claude Sonnet Latestvs Anthropic: Claude Fable Latestvs Anthropic: Claude Opus Latest