Claude Opus 4 vs Gemini 2.5 Flash
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4 and Gemini 2.5 Flash.
Claude Opus 4
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in...
Gemini 2.5 Flash
Gemini 2.5 Flash is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding, mathematics, and scientific tasks. It includes built-in "thinking" capabilities, enabling it to provide responses with greater...
Technical Specifications
| Specification | Claude Opus 4 | Gemini 2.5 Flash |
|---|---|---|
| Provider | Anthropic | |
| Context Window | 200,000 tokens | 1,048,576 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | beta |
| API Available | Yes | Yes |
| Released Date | 2025-05-22 | 2025-06-17 |
API Pricing Comparison
Input Price per Million Tokens
Claude Opus 4
$15.00
Gemini 2.5 Flash
$0.30
Output Price per Million Tokens
Claude Opus 4
$75.00
Gemini 2.5 Flash
$2.50
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Opus 4 Quirks & Gotchas
No developer gotchas reported.
Gemini 2.5 Flash Quirks & Gotchas
No developer gotchas reported.