LLM Reference
Together.ai

Together.ai

9 models across 5 families · Latest: Together 7B (2025-01)

Blazing-fast, cost-effective AI inference solutions

ClassificationJSON / Tool use

Together.ai's portfolio covers 9 active models across 5 current families, spanning classification and json / tool use. Open a model detail page to compare provider routes and sourced benchmarks.

Covers 2 workload areas across 9 active tracked models; last verified 2026-05-19.

Use it for

  • Teams evaluating classification and json / tool use across this lab's releases
  • Comparing model families before committing to a flagship
  • Migration and pricing follow-ups across 9 tracked models

Do not use it for

  • Choosing a hosting provider without opening a model page for price ladders

Active models

9

Current models from this lab, excluding deprecated ones

Active families

5

Current model families from this lab

Open catalog

9 open

8 open source / 1 open weights

Lowest output price

$0.200 /1M

Cheapest tracked output across active models, per 1M tokens

Latest dated release

2025-01-15

Together 7B

Freshness

2026-05-19

Researched 60d ago

aging

Information

Founded2022
San Francisco, California, United States

Release cadence

Showing 5 recent dated releases (full timeline below). Latest: Together 7B (2025-01-15).

Where this lab wins

  • Classification: 4 tracked models with MMLU-class moderation/safety coverage.
  • JSON/tool-use: 4 tracked models with BFCL / Nexus strict-JSON routing coverage.

Flagship quality / price signal

Flagship: StripedHyena Hessian 7B (best sourced coding quality-per-dollar in this portfolio).

Quality-per-dollar unavailable for this flagship — benchmark coverage or output token pricing is still missing.

Together.ai is an American AI research organization founded in 2022. Blazing-fast, cost-effective AI inference solutions. Together.ai ships 5 model families totaling 9 models, with the most recent release Together 7B in 2025-01. Notable families include Together General, Striped Hyena, and RedPajama. Use it as a stable reference for lab background, release coverage, and follow-up model pages as they are added. View official API endpoints, benchmark performance, and coding/agent fit for every Together.ai model.

About

Together AI, a dynamic entity in the realm of generative artificial intelligence (AI) and large language models (LLMs), was established in 2022 in San Francisco. This innovative company was founded by a team of esteemed AI researchers and pioneers, including Vipul Ved Prakash, Ce Zhang, Chris Ré, and Percy Liang. These founders bring an extensive background in AI model architectures and infrastructure, driving the company's mission to democratize access to generative AI technologies. The core belief at Together AI is the power of open-source AI. By promoting transparency, privacy, and flexibility, they empower users to retain ownership of their models and data—a critical consideration amidst growing concerns about data privacy and vendor lock-in. Through decentralized cloud services, Together AI facilitates organizations in leveraging generative AI capabilities seamlessly, removing the typical complexities found in large-scale AI infrastructure. One of Together AI's notable contributions to the field is the RedPajama project, which aspires to craft chat-based AI models that rival leading platforms such as OpenAI's ChatGPT. The project boasts the RedPajama dataset, comprising over 30 trillion tokens, making it a cornerstone for training LLMs. This substantial open dataset underscores Together AI's dedication to advancing open-source research and providing valuable tools for AI progress. Technological innovation is a hallmark of Together AI, as reflected in the development of FlashAttention. This technique enhances the efficiency of the attention mechanism within transformer models, leading to marked improvements in training and inference speeds. Such advancements not only benefit academic pursuits but also translate into practical solutions that boost the capabilities of AI systems operationally. The collective expertise at Together AI spans machine learning, natural language processing, and cloud computing, among other fields. The multidisciplinary team thrives on addressing complex AI research and development challenges. With a leadership team that comprises individuals with distinguished careers in academia and industry, Together AI persistently leads the charge in AI innovation. Ultimately, Together AI envisions a future where generative AI is not only accessible and transparent but also widely beneficial. By championing open-source initiatives and nurturing a collaborative environment, Together AI is reshaping the landscape of AI research and deployment. Their dedication to empowering developers and researchers places them at the forefront of the swiftly evolving field of generative AI and LLMs.

Featured models

ModelReleasedContextInput price ($/1M)Output price ($/1M)LicenseOpenness
Together 7B2025-01-154k--Apache 2.0Open source
StripedHyena Hessian 7B2023-12-0832k$0.2$0.2Apache 2.0Open source
StripedHyena Nous 7B2023-12-0832k$0.2$0.2Apache 2.0Open source

Model families

Recent releases

  1. Together 7B- 2025-01-15
  2. StripedHyena Hessian 7B- 2023-12-08
  3. StripedHyena Nous 7B- 2023-12-08
  4. RedPajama INCITE 7B- 2023-10-01
  5. RedPajama INCITE 3B- 2023-10-01

FAQ

Who founded Together.ai and when?

Together.ai was founded in 2022 and is associated with San Francisco, California, United States.

What models has Together.ai released?

Together.ai ships 9 models across 5 families: Together General, Striped Hyena, and RedPajama.

Is Together.ai's technology open source?

All tracked Together.ai models are open-weight or open-source.

Where is Together.ai headquartered?

Together.ai is headquartered in San Francisco, California, United States.

What is Together.ai known for?

Blazing-fast, cost-effective AI inference solutions. Its most prominent tracked family is Together General.

How can I access Together.ai's models?

Together.ai's models are available via Replicate API and Together AI.

Explore related pages

Last reviewed: 2026-05-19. Data sourced from public lab announcements and provider documentation.