GPT 5.6 Luna vs GPT OSS 120B
Compare GPT 5.6 Luna and GPT OSS 120B on key metrics including price, context length, throughput, and other model features.
AuthorOpenAI
Context Length1.1M
Supports Tools
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for its price tier.
Activity
Last 14 daysPrompt
703MCompletion
2MTotal
705MStartup
Startup
Latency (p50)3.97s
Throughput (p50)31.8 tok/s
Pricing
Input$0.10/M tokens
Output$0.60/M tokens
Cached input$0.01/M tokens
Features
Input Modalitiestext, image, file
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools
AuthorOpenAI
Context Length131.1k
Supports Tools
An open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI, designed for high-reasoning, agentic, and general-purpose production use cases. Activates 5.1B parameters per forward pass and is optimized for single H100 GPU deployment with native MXFP4 quantization. Supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.
Activity
Last 14 daysPrompt
37MCompletion
17MTotal
54MStartup
Startup
Latency (p50)0.35s
Throughput (p50)398.6 tok/s
Pricing
Input$0.02/M tokens
Output$0.08/M tokens
Cached input$0.07/M tokens
Features
Input Modalitiestext, file
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools