Model Comparison

Comprehensive side-by-side analysis of model capabilities and performance

OpenAI

GPT OSS 20B

OpenAI

GPT OSS 20B is a multimodal language model developed by OpenAI. It supports a 262K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents OpenAI's latest advancement in AI technology.

OpenAI

o3

OpenAI

o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 65.3% across 19 benchmarks. It excels particularly in AIME 2024 (91.6%), ARC-AGI (88.0%), MathVista (86.8%). The model shows particular specialization in vision tasks with an average performance of 76.7%. It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.

OpenAI

o3

OpenAI

2025-04-16

OpenAI

GPT OSS 20B

OpenAI

2025-08-05

3 months newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT OSS 20B

$9.40 cheaper
Input:$0.10
Output:$0.50
OpenAI

o3

Input:$2.00
Output:$8.00

Performance Metrics

Context window and performance specifications

OpenAI

GPT OSS 20B

Max Context:262.1K
Parameters:20.0B
OpenAI

o3

Larger context
Max Context:300.0K
Knowledge Cutoff
Training data recency comparison

o3

2024-05-31

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT OSS 20B

2 providers

ZeroEval

Throughput: 1000 tok/s
Latency: 0.38ms

OpenAI

Throughput: 115 tok/s
Latency: 5.2ms
OpenAI

o3

1 providers

OpenAI

Throughput: 50 tok/s
Latency: 20ms
OpenAI

GPT OSS 20B

Avg Score:0.0%
Providers:2
OpenAI

o3

Avg Score:0.0%
Providers:1