 gpt-oss-120b |  Llama 3.1 405B Instruct | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | Meta |
Input Context Window Maximum input tokens this model can process at once | 131K tokens | 32.8K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 131K tokens | 16.4K tokens |
Release Date When this model first became publicly available | August 5, 2025 25 days ago August 5th, 2025 | July 23, 2024 1 year ago July 23rd, 2024 |
gpt-oss-120b | Llama 3.1 405B Instruct | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | Llama3 |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Available on HuggingFace → |
| gpt-oss-120b | Llama 3.1 405B Instruct | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.07 per million tokens | $0.80 per million tokens |
Output Token Cost Cost per million outut tokens | $0.28 per million tokens | $0.80 per million tokens |
| gpt-oss-120b | Llama 3.1 405B Instruct | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
gpt-oss-120b by OpenAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 131K token context window. Very affordable at $0.07/M input and $0.28/M output tokens. Released August 5th, 2025.Llama 3.1 405B Instruct by Meta can use external tools and APIs, generates structured data. It can handle standard conversations with its 32.8K token context window. Reasonably priced at $0.80/M input and $0.80/M output tokens. Released July 23rd, 2024.Compare your models with top performers across different categories
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