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Gemini 2.5 Flash vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 14.1% higher average benchmark score. Gemini 2.5 Flash offers 586.1K more tokens in context window than GPT-5. Gemini 2.5 Flash is $8.45 cheaper per million tokens. Overall, GPT-5 is the stronger choice for coding tasks.
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Gemini 2.5 Flash represents a continued evolution of Google's efficient multimodal models, designed to deliver enhanced capabilities while maintaining the performance characteristics valued in the Flash series. Built to serve high-throughput applications with improved quality, it advances the balance between speed and intelligence.
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OpenAI
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
2 months newer
Gemini 2.5 Flash
2025-05-20
GPT-5
OpenAI
2025-08-07
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Pricing Comparison
Cost per million tokens (USD)
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Gemini 2.5 Flash
Input:$0.30
Output:$2.50($8.45 cheaper)
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GPT-5
Input:$1.25
Output:$10.00
Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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Gemini 2.5 Flash
Average Score:61.3%
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GPT-5
Average Score:75.4%(+14.1%)
Performance comparison across key benchmark categories
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Gemini 2.5 Flash
Coding60.4%
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GPT-5
Coding74.9%(+14.5%)
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Knowledge Cutoff
Training data recency comparison
GPT-5
2024-09-30
Gemini 2.5 Flash
2025-01-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 2.5 Flash
2 providers
Throughput: 85 tok/s
Latency: 0.7ms
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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Gemini 2.5 Flash
Avg Score:61.3%
Providers:2
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GPT-5
Avg Score:75.4%(+14.1%)
Providers:2