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.

Microsoft

Phi-3.5-mini-instruct

Microsoft

Phi-3.5-mini-instruct is a language model developed by Microsoft. The model shows competitive results across 31 benchmarks. It excels particularly in GSM8k (86.2%), ARC-C (84.6%), RULER (84.1%). It supports a 256K token context window for handling large documents. The model is available through 1 API provider. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2024, it represents Microsoft's latest advancement in AI technology.

Microsoft

Phi-3.5-mini-instruct

Microsoft

2024-08-23

OpenAI

GPT OSS 20B

OpenAI

2025-08-05

11 months newer

Pricing Comparison

Cost per million tokens (USD)

OpenAI

GPT OSS 20B

Input:$0.10
Output:$0.50
Microsoft

Phi-3.5-mini-instruct

$0.40 cheaper
Input:$0.10
Output:$0.10

Performance Metrics

Context window and performance specifications

OpenAI

GPT OSS 20B

Larger context
Max Context:262.1K
Parameters:20.0B
Microsoft

Phi-3.5-mini-instruct

Max Context:256.0K
Parameters:3.8B

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
Microsoft

Phi-3.5-mini-instruct

1 providers

Azure

Throughput: 23 tok/s
Latency: 0.52ms
OpenAI

GPT OSS 20B

Avg Score:0.0%
Providers:2
Microsoft

Phi-3.5-mini-instruct

Avg Score:0.0%
Providers:1