LLM Reference

GPT-JT Models by Together.ai

Together.aiApache 2.0Open source
3 models2023From $0.2/1M input

Last refreshed 2026-05-19. Next refresh: weekly.

Details

ResearcherTogether.ai
LicenseApache 2.0OSI-approved
Commercial useCommercial use: permitted
Models3
Released2023

Capabilities

Structured Outputs1 of 3 models

About

GPT-JT is a series of large language models that originate from a fine-tuned version of EleutherAI's GPT-J 6B model. These models utilize a decentralized training algorithm, allowing them to operate efficiently despite using a network with relatively slow interconnect speeds. This novel approach optimizes the use of diverse hardware resources. The training process integrates various open-source methodologies and datasets, including Google Research's UL2 training objective, Chain-of-Thought prompting, and datasets like BigScience's Public Pool of Prompts (P3) and AllenAI's Natural Instructions (NI). As a result, GPT-JT models exhibit strong performance on classification benchmarks and are known to outperform models with significantly larger parameters. Importantly, these models are available as open-source, inviting community participation for further enhancements145.

Decision facts

Best fit
safetystructured outputs
Capability starting point
GPT-JT Moderation 6B with structured outputs
Lowest tracked input
GPT-JT Moderation 6B · $0.2/1M · Together AI
Closest related family
Together General

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

3 in view

Use when the workload needs 6B parameters.

2023-036B parameters

Use when the workload needs 6B parameters.

2023-036B parameters

Use when the workload needs safety, 6B parameters, and structured outputs.

2023-03safety6B parametersstructured outputs

Release Timeline

1 release group
2023-03
3 current
GPT-JT 6B V0
6B parameters
Current
GPT-JT 6B V1
6B parameters
Current
GPT-JT Moderation 6B
safety6B parametersstructured outputs
Current

Specifications(3 models)

GPT-JT model specifications comparison
ModelReleasedParametersStructured Outputs
GPT-JT 6B V02023-036BNo
GPT-JT 6B V12023-036BNo
GPT-JT Moderation 6B2023-036BYes

Available From(2 providers)

Pricing

GPT-JT model pricing by provider
ModelProviderInput / 1MOutput / 1MType
GPT-JT Moderation 6BTogether AI$0.2$0.2Serverless