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Brian2 Atlas vs Rayrun

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Brian2 Atlas compared with Rayrun
DetailBrian2 Atlas logo Brian2 AtlasRayrun logo Rayrun
What it doesDistributed neural simulation with MPI for Brian2 models One endpoint for every MCP tool
StageStartup Not given
Founded2026 Not given
Based inGB US
Pricing modelOpen source Freemium
PricingNot given Free for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month.
Key features
  • Distributed simulation across MPI ranks
  • Multi-backend execution (CPU, GPU, Browser, MPI)
  • AtlasIR typed intermediate representation
  • Native forward and reverse execution for training
  • Retains Brian2 modelling interface
  • GPU execution on Apple Metal and NVIDIA CUDA
  • WebAssembly browser execution
  • CPU reference and AOT compilation
  • Source-built servers with TypeScript or Python projects
  • Remote MCP, OpenAPI, npm package, and container image support
  • Per-tool and per-argument access control policies
  • Tool definition review and approval workflow
  • Content scanning with literal and regex detectors
  • Activity tracking and audit trails
  • OIDC and SAML 2.0 single sign-on
  • SCIM 2.0 provisioning
  • Workspace-specific data encryption
  • Custom domain publishing with DNS and Cloudflare certification
What makes it different
  • Distributed execution without sacrificing Brian2's familiar modelling interface
  • Open-source with published arXiv paper and reproduction materials
  • Explicit, verifiable execution plans via AtlasIR
  • One endpoint replaces every client config, eliminating need for each client to store every server and secret
  • Coding agent builds the server automatically with no adapter needed
  • Credentials held once by Rayrun instead of distributed across clients
  • Built-in security review with published controls and audit trails for compliance teams
  • Support for multiple service types without writing adapters
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet −1 (down) since last check45 no change since last check
Trust Flow (Majestic)312
Citation Flow (Majestic)1936
Referring domains (Majestic)14125

5 details filled in for both companies.

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