Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective for large codebases, complex refa…
Model details →Anthropic: Claude Opus 4.6 vs OpenAI: GPT-4o (2024-05-13)
Anthropic: Claude Opus 4.6 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
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 fast and 50% more cost-effec…
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 4.6 | OpenAI: GPT-4o (2024-05-13) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 128K | 🏆 Anthropic: Claude Opus 4.6 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $5.00 | $5.00 | Tie |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $25.00 | $15.00 | 🏆 OpenAI: GPT-4o (2024-05-13) |
| 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 4.6 |
Frequently asked questions
Is Anthropic: Claude Opus 4.6 better than OpenAI: GPT-4o (2024-05-13)?
Anthropic: Claude Opus 4.6 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Opus 4.6 and OpenAI: GPT-4o (2024-05-13)?
Input: $5.00 vs $5.00 per 1M tokens. Output: $25.00 vs $15.00 per 1M tokens.
What context windows do Anthropic: Claude Opus 4.6 and OpenAI: GPT-4o (2024-05-13) support?
Anthropic: Claude Opus 4.6 supports up to 1M tokens. OpenAI: GPT-4o (2024-05-13) supports up to 128K tokens.
Do both Anthropic: Claude Opus 4.6 and OpenAI: GPT-4o (2024-05-13) support tool calling?
Anthropic: Claude Opus 4.6: yes. OpenAI: GPT-4o (2024-05-13): yes.