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Claude Opus 4.5 vs GPT-4.1 mini
Comprehensive side-by-side LLM comparison
Claude Opus 4.5 leads with 22.8% higher average benchmark score. GPT-4.1 mini offers 768.8K more tokens in context window than Claude Opus 4.5. GPT-4.1 mini is $28.00 cheaper per million tokens. Claude Opus 4.5 is available on 3 providers. Overall, Claude Opus 4.5 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.5, released by Anthropic in November 2025, is a large language model from the Claude 4.5 family built for demanding reasoning tasks, advanced code generation, and complex agentic workflows. It features a 200K token context window, 64K maximum output tokens, native image understanding, and extended thinking with configurable effort levels. Opus 4.5 targets deep analytical work, multi-step tool orchestration, and applications requiring sustained reasoning across long, complex tasks.
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OpenAI
GPT-4.1 mini, released by OpenAI in April 2025, is a smaller variant from the GPT-4.1 family designed for efficient, cost-effective deployments requiring long-context understanding. It features a 1M token context window and native image understanding, with maintained coding and instruction-following capabilities relative to its size. GPT-4.1 mini targets applications needing a balance between response speed, cost, and capability, such as production APIs with high request volumes.
6 months newer
GPT-4.1 mini
OpenAI
2025-04-14
Claude Opus 4.5
Anthropic
2025-11-01
Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.5
Input:$5.00
Output:$25.00
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GPT-4.1 mini
Input:$0.40
Output:$1.60($28.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Claude Opus 4.5
Average Score:87.0%(+22.8%)
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GPT-4.1 mini
Average Score:64.2%
Performance comparison across key benchmark categories
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Claude Opus 4.5
Science87.0%(+22.8%)
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GPT-4.1 mini
Science64.2%
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Knowledge Cutoff
Training data recency comparison
Claude Opus 4.5
2025-05
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 4.5
3 providers
Anthropic
AWS Bedrock
Google Cloud Vertex AI
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GPT-4.1 mini
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Claude Opus 4.5
Avg Score:87.0%(+22.8%)
Providers:3
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GPT-4.1 mini
Avg Score:64.2%
Providers:1