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Claude Opus 4.1 vs Gemini 2.5 Flash
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 9.6% higher average benchmark score. Gemini 2.5 Flash offers 776.2K more tokens in context window than Claude Opus 4.1. Gemini 2.5 Flash is $89.25 cheaper per million tokens. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1, released by Anthropic in August 2025, is a large language model from the Claude 4 family optimized for demanding reasoning, multi-step coding, and extended analysis tasks. It features a 200K token context window, 32K maximum output tokens, native image understanding, and extended thinking capabilities. Opus 4.1 targets complex problem-solving, multi-turn reasoning workflows, and applications requiring deep analysis with integrated tool use.
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Google DeepMind
Gemini 2.5 Flash, released by Google in June 2025, is a large language model from the Gemini 2.5 family optimized for high-throughput, cost-efficient deployments with multimodal reasoning. It features a 1M token context window, hybrid thinking control, and native support for text, image, video, and audio input. Gemini 2.5 Flash targets latency-sensitive applications, document analysis, and high-volume API workloads that benefit from combined reasoning and generation in a single model.
1 month newer
Gemini 2.5 Flash
Google DeepMind
2025-06-17
Claude Opus 4.1
Anthropic
2025-08-05
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Gemini 2.5 Flash
Input:$0.15
Output:$0.60($89.25 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Opus 4.1
Average Score:30.4%(+9.6%)
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Gemini 2.5 Flash
Average Score:20.8%
Performance comparison across key benchmark categories
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Claude Opus 4.1
Science80.9%(+2.6%)
Tool Use40.9%(+37.5%)
Agents0.9%
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.1
2025-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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Gemini 2.5 Flash
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Claude Opus 4.1
Avg Score:30.4%(+9.6%)
Providers:3
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Gemini 2.5 Flash
Avg Score:20.8%
Providers:2