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Prime Intellect vs Together AI

A side-by-side comparison of Prime Intellect and Together AI, drawn from Ignaite's continuously-verified listings.

Compared from listings verified as of

Prime Intellect

Infra

Open compute marketplace and RL training stack for agentic models.

View Prime Intellect

Together AI

Inference

Hosted inference and fine-tuning for open-weights models.

View Together AI

At a glance

Feature comparison of Prime Intellect and Together AI
AttributePrime IntellectTogether AI
Category (differs)InfraInference
Pricing (differs)PAIDFREEMIUM
License (differs)Open coreProprietary
DeploymentCloudCloud
Platforms (differs)Web, CLI, APIAPI
Model support (differs)Model-agnosticMulti-model
Vendor (differs)Prime IntellectTogether
Capabilities (differs)
  • GPU compute
  • Fine-tuning / training
  • Model inference / serving
  • LLM evaluation
  • Model inference / serving
  • Fine-tuning / training
  • Multi-model access
  • GPU compute

The honest brief

Prime Intellect

Pairs a multi-cloud GPU spot marketplace with an open RL training stack — peers typically offer the compute or the training tooling, rarely both.

  • Multi-cloud GPU marketplace
  • Open-source RL stack (prime-rl)
  • 2,500+ RL environments hub
  • Open INTELLECT model recipes
  • Younger than major GPU clouds
  • RL stack targets advanced users
  • Spot capacity varies by provider

Together AI

One stop for the open-model stack: hundreds of open-weights models served plus both LoRA and full fine-tuning.

  • LoRA and full fine-tuning
  • Competitive inference-at-scale pricing
  • OpenAI-compatible API
  • Dedicated endpoints + GPU clusters
  • Open models only, no frontier closed models
  • Less specialized than single-model hosts
  • Throughput varies by model demand

When to pick which

Both cover GPU compute, Fine-tuning / training, and Model inference / serving.

Pick Prime Intellect if you need LLM evaluation.

  • LLM evaluation (secondary capability)

Pick Together AI if you need Multi-model access.

  • Multi-model access (secondary capability)

They share capabilities, but each leads with different ones as a headline job:

Prime Intellect is built around GPU compute.

  • GPU compute (primary capability)

Together AI is built around Model inference / serving.

  • Model inference / serving (primary capability)

They also differ on:

Pricing
PAID · FREEMIUM
License
Open core · Proprietary
Platforms
Web, CLI, API · API
Prime Intellect detailsTogether AI details