Claude Opus 4.8 vs GPT 5
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 5▼
Which is better, Claude Opus 4.8 or GPT 5?
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Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 81.8). 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?
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GPT 5 has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 5: $1.25 input / $10.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 5?
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Claude Opus 4.8 has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 5 at 400K tokens.
Do both Claude Opus 4.8 and GPT 5 support vision?
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Yes, both Claude Opus 4.8 and GPT 5 support vision/image input.
Which has better coding performance, Claude Opus 4.8 or GPT 5?
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Claude Opus 4.8 scores higher on SWE-bench Verified: Claude Opus 4.8 resolves 89% vs GPT 5 at 74%.
What are the key differences between Claude Opus 4.8 and GPT 5?
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Key differences: Claude Opus 4.8 has a notably higher capability index (7.4 point gap); GPT 5 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 for free on idapt.app to see which performs better for your specific needs.