Claude Opus 4.8 vs GPT 5.6 Terra
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
OpenAI's balanced GPT-5.6 tier — GPT-5.5-class quality for everyday work at half the price.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 5.6 Terra▼
Which is better, Claude Opus 4.8 or GPT 5.6 Terra?
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Both Claude Opus 4.8 and GPT 5.6 Terra are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Which is cheaper, Claude Opus 4.8 or GPT 5.6 Terra?
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GPT 5.6 Terra has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 5.6 Terra: $2.50 input / $15.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 5.6 Terra?
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GPT 5.6 Terra has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 5.6 Terra at 1.1M tokens.
Do both Claude Opus 4.8 and GPT 5.6 Terra support vision?
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Yes, both Claude Opus 4.8 and GPT 5.6 Terra support vision/image input.
What are the key differences between Claude Opus 4.8 and GPT 5.6 Terra?
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Claude Opus 4.8 and GPT 5.6 Terra have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.
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 5.6 Terra for free on idapt.app to see which performs better for your specific needs.