Claude Opus 4vsGemini 1.5 Pro
Anthropic vs Google DeepMind — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Claude Opus 4 | Gemini 1.5 Pro |
|---|---|---|
| Provider | ||
| Arena Rank | #1 | #4 |
| Context Window | 200K | 1M |
| Input Pricing | $5.00/1M tokens | $3.50/1M tokens |
| Output Pricing | $25.00/1M tokens | $10.50/1M tokens |
| Parameters | Undisclosed | Undisclosed |
| Open Source | No | No |
| Best For | Complex reasoning, coding, agentic tasks | Long documents, multimodal analysis, coding |
| Release Date | May 22, 2025 | May 14, 2024 |
Claude Opus 4
Claude Opus 4 is Anthropic's most powerful AI model, holding the #1 position on the Chatbot Arena leaderboard. It represents a breakthrough in extended thinking and agentic capabilities, able to work autonomously on complex multi-step tasks for hours. With a 200K token context window, it excels at analyzing entire codebases, lengthy legal documents, and research papers in a single pass. The model demonstrates exceptional performance in coding (setting new benchmarks on SWE-bench), advanced reasoning, and nuanced writing tasks. Its agentic capabilities allow it to use tools, navigate computers, and execute multi-step workflows with minimal human oversight. Opus 4 is the preferred choice for enterprises requiring the highest quality output on mission-critical tasks where accuracy and depth matter more than speed or cost.
View Anthropic profile →Gemini 1.5 Pro
Gemini 1.5 Pro is Google DeepMind's flagship multimodal model featuring an industry-leading 1 million token context window, capable of processing entire codebases, books, or hours of video in a single prompt. It demonstrates exceptional performance on long-context reasoning tasks, multimodal understanding across text, images, audio, and video, and complex coding challenges. The massive context window opens entirely new use cases that were previously impossible with shorter-context models.
View Google DeepMind profile →Key Differences: Claude Opus 4 vs Gemini 1.5 Pro
Claude Opus 4 ranks higher in arena benchmarks (#1) indicating stronger overall performance.
Gemini 1.5 Pro is 2.1x cheaper on average, making it the better choice for high-volume applications.
Gemini 1.5 Pro supports a larger context window (1M), allowing it to process longer documents in a single request.
When to use Claude Opus 4
- +You need the highest quality output based on arena rankings
- +Quality matters more than cost
- +Your use case involves complex reasoning, coding, agentic tasks
When to use Gemini 1.5 Pro
- +Budget is a concern and you need cost efficiency
- +You need to process long documents (1M context)
- +Your use case involves long documents, multimodal analysis, coding
Cost Analysis
At current pricing, Gemini 1.5 Pro is 2.1x more affordable than Claude Opus 4. For a typical enterprise workload processing 100M tokens per month:
Claude Opus 4 monthly cost
$1,500
100M tokens/mo (50/50 in/out)
Gemini 1.5 Pro monthly cost
$700
100M tokens/mo (50/50 in/out)
The Verdict
Gemini 1.5 Pro wins our head-to-head comparison with 3 out of 5 category wins. It's the stronger choice for long documents, multimodal analysis, coding, though Claude Opus 4 holds an edge in complex reasoning, coding, agentic tasks.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages