Claude Opus 4.5 vs GPT-4o-mini Search Preview (Comparative Analysis)
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Comparative Analysis: Claude Opus 4.5 vs. GPT-4o-mini Search Preview
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Overview
GPT-4o-mini Search Preview was released 8 months before Claude Opus 4.5.
 Claude Opus 4.5 |  GPT-4o-mini Search Preview | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 128K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 64K tokens | 16.4K tokens |
Release Date When this model first became publicly available | November 24, 2025 7 months ago November 24th, 2025 | March 12, 2025 1 year ago March 12th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | October 31, 2023 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Opus 4.5 | GPT-4o-mini Search Preview | |
|---|---|---|
Input Types Supported input formats | 📁File🖼️Image📝Text | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | Function Calling✓Structured OutputReasoning Mode✓Content Moderation |
Pricing
Claude Opus 4.5 is roughly 33.3x more expensive compared to GPT-4o-mini Search Preview for input tokens and roughly 41.7x more expensive for output tokens.
| Claude Opus 4.5 | GPT-4o-mini Search Preview | |
|---|---|---|
Input Token Cost Cost per million input tokens | $5.00 per million tokens | $0.15 per million tokens |
Output Token Cost Cost per million output tokens | $25.00 per million tokens | $0.60 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | $0.0275 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.50 per million tokens | Not specified |
Cache Write Cost Cost to write input tokens to the cache | $6.25 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $10.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Opus 4.5 and GPT-4o-mini Search Preview.
| Claude Opus 4.5 | GPT-4o-mini Search Preview | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,288 Elo (#20 in Game Dev (59.4% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes Claude Opus 4.5 and GPT-4o-mini Search Preview unique.
Claude Opus 4.5 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $5.00/M input and $25.00/M output tokens. Includes built-in content moderation for safer outputs. Released November 24th, 2025.GPT-4o-mini Search Preview by OpenAI generates structured data. It can handle standard conversations with its 128K token context window. Very affordable at $0.15/M input and $0.60/M output tokens. Includes built-in content moderation for safer outputs. Released March 12th, 2025.Explore More Comparisons
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Compare GPT-4o-mini Search Preview with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
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Multilingual translation tasks