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Claude Opus 5 vs GPT Mini (120b)

At a glance

Anthropic's flagship for demanding reasoning, coding, and long-horizon agentic work.

1M ctx$5.00/$25.00 per M

OpenAI's budget-friendly reasoning model — fast and surprisingly capable.

73131K ctx$0.04/$0.17 per M#49/92
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Capability
Capability—
Coding
Code Editing—
Agentic
Terminal Tasks—Task Horizon—
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper99%
Capability
CapabilityECI73.2
Coding
Code Editing41.8%
Agentic
Terminal Tasks18.7%Task Horizon42min
Specs
1M
Context
128K
Max output
Jul 2026
Released
131K
Context
66K
Max output
Aug 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$5.00/M tokens
Output$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input99%$0.04/M tokens
Output99%$0.17/M tokens
Chat with Claude Opus 5Go to model
Chat with GPT Mini (120b)Go to model
Frequently Asked Questions: Claude Opus 5 vs GPT Mini (120b)▼

Which is better, Claude Opus 5 or GPT Mini (120b)?

▼

Both Claude Opus 5 and GPT Mini (120b) 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 5 or GPT Mini (120b)?

▼

GPT Mini (120b) has a lower blended cost. Claude Opus 5: $5.00 input / $25.00 output. GPT Mini (120b): $0.04 input / $0.17 output.

Which has a larger context window, Claude Opus 5 or GPT Mini (120b)?

▼

Claude Opus 5 has a larger context window: Claude Opus 5 supports 1M tokens vs GPT Mini (120b) at 131K tokens.

Do both Claude Opus 5 and GPT Mini (120b) support vision?

▼

Claude Opus 5 supports vision/image input, but GPT Mini (120b) does not.

What are the key differences between Claude Opus 5 and GPT Mini (120b)?

▼

Key differences: GPT Mini (120b) is significantly cheaper; only Claude Opus 5 supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

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 5 and GPT Mini (120b) for free on idapt.app to see which performs better for your specific needs.

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