Claude Opus 4.8 vs GPT 5.4 Pro
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
OpenAI's most advanced reasoning model, built on GPT 5.4's unified architecture.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 5.4 Pro▼
Which is better, Claude Opus 4.8 or GPT 5.4 Pro?
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Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 89.1). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Opus 4.8 or GPT 5.4 Pro?
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Claude Opus 4.8 has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 5.4 Pro: $30.00 input / $180.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 5.4 Pro?
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GPT 5.4 Pro has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 5.4 Pro at 1.1M tokens.
Do both Claude Opus 4.8 and GPT 5.4 Pro support vision?
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Yes, both Claude Opus 4.8 and GPT 5.4 Pro support vision/image input.
What are the key differences between Claude Opus 4.8 and GPT 5.4 Pro?
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Key differences: Claude Opus 4.8 is significantly cheaper. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 4.8 and GPT 5.4 Pro for free on idapt.app to see which performs better for your specific needs.