Claude Opus 4.8 vs GPT 5.1 Codex Mini
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
Compact coding model for fast, cost-efficient development tasks.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 5.1 Codex Mini▼
Which is better, Claude Opus 4.8 or GPT 5.1 Codex Mini?
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Both Claude Opus 4.8 and GPT 5.1 Codex Mini 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 5.1 Codex Mini?
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GPT 5.1 Codex Mini has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 5.1 Codex Mini: $0.25 input / $2.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 5.1 Codex Mini?
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Claude Opus 4.8 has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 5.1 Codex Mini at 400K tokens.
Do both Claude Opus 4.8 and GPT 5.1 Codex Mini support vision?
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Yes, both Claude Opus 4.8 and GPT 5.1 Codex Mini support vision/image input.
What are the key differences between Claude Opus 4.8 and GPT 5.1 Codex Mini?
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Key differences: GPT 5.1 Codex Mini 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 5.1 Codex Mini for free on idapt.app to see which performs better for your specific needs.