Claude 3 Opus vs Gemini 1.5 Flash
Pricing, context window, and benchmark comparison · Last updated April 2026
Gemini 1.5 Flash is cheaper than Claude 3 Opus at $0.07/1M/1M vs $15.00/1M/1M input tokens — a 200.0x cost difference. Claude 3 Opus scores higher on quality benchmarks (ELO 1249). Choose Gemini 1.5 Flash for cost-sensitive workloads; choose Claude 3 Opus for maximum quality.
Which is cheaper: Claude 3 Opus or Gemini 1.5 Flash?
Gemini 1.5 Flash is the cheaper option at $0.07/1M per 1M input tokens, compared to $15.00/1M for Claude 3 Opus. That is a 200.0x cost difference on input tokens. Output pricing follows a similar pattern: Claude 3 Opus charges $75.00/1M/1M vs $0.30/1M/1M for Gemini 1.5 Flash.
Which has better quality: Claude 3 Opus or Gemini 1.5 Flash?
Based on LMSYS Chatbot Arena rankings, Claude 3 Opus achieves a higher ELO score (1249 vs 1211), suggesting stronger performance on open-ended tasks. Claude 3 Opus excels at best claude model for creative writing. Gemini 1.5 Flash is known for one of the cheapest high-quality models available.
Which should you choose: Claude 3 Opus or Gemini 1.5 Flash?
- → Best Claude model for creative writing
- → 200K context window
- → Deep, thoughtful long-form analysis
- → One of the cheapest high-quality models available
- → 1M token context window
- → Very fast inference
Frequently Asked Questions
Which is cheaper: Claude 3 Opus or Gemini 1.5 Flash?
Gemini 1.5 Flash is cheaper at $0.07/1M per 1M input tokens, making it 200.0x more affordable.
Which has better quality: Claude 3 Opus or Gemini 1.5 Flash?
Claude 3 Opus scores higher on the LMSYS Chatbot Arena with an ELO of 1249, suggesting better overall quality for most tasks.
Which has a larger context window: Claude 3 Opus or Gemini 1.5 Flash?
Gemini 1.5 Flash has a larger context window at 1000K tokens.
Should I choose Claude 3 Opus or Gemini 1.5 Flash?
Choose Gemini 1.5 Flash if cost is the priority. Choose Claude 3 Opus if benchmark quality is most important. Consider your specific use case: Claude 3 Opus is best for creative-writing and research, while Gemini 1.5 Flash excels at low-cost and fast-response.
Is Claude 3 Opus or Gemini 1.5 Flash open source?
Claude 3 Opus is proprietary. Gemini 1.5 Flash is proprietary.