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GPT-4o vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 23.4% higher average benchmark score. o3 offers 155.6K more tokens in context window than GPT-4o. GPT-4o is $37.50 cheaper per million tokens. Overall, o3 is the stronger choice for coding tasks.
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OpenAI
GPT-4o, released by OpenAI in May 2024, is a multimodal large language model from the GPT-4 family that natively processes text, image, and audio inputs in a single end-to-end model. It features a 128K token context window and demonstrated competitive performance across coding, reasoning, and vision benchmarks at its release. GPT-4o targets general-purpose assistant applications, vision-enabled workflows, and use cases requiring low-latency multimodal understanding.
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OpenAI
OpenAI o3, released by OpenAI in April 2025, is a large reasoning model that applies extended chain-of-thought processing to deliver improved performance on complex math, science, and coding tasks. It features a 200K token context window and native image understanding, with demonstrated strong results on mathematics and software engineering benchmarks. o3 targets demanding analytical and engineering tasks where deliberate, multi-step reasoning produces significantly better outcomes than direct generation.
11 months newer
GPT-4o
OpenAI
2024-05-13
o3
OpenAI
2025-04-16
Pricing Comparison
Cost per million tokens (USD)
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GPT-4o
Input:$2.50
Output:$10.00($37.50 cheaper)
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o3
Input:$10.00
Output:$40.00
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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GPT-4o
Average Score:24.4%
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o3
Average Score:47.8%(+23.4%)
Performance comparison across key benchmark categories
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GPT-4o
Science56.1%
Tool Use7.2%
Agents9.9%
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Knowledge Cutoff
Training data recency comparison
GPT-4o
2024-04
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4o
1 providers
OpenAI
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o3
1 providers
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GPT-4o
Avg Score:24.4%
Providers:1
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o3
Avg Score:47.8%(+23.4%)
Providers:1