Series B · $150M
$150M Series B.
Vertical + Enterprise · Private company · Growth
Goodfire
✓ VerifiedGoodfire matters as a model-understanding company rather than another application wrapper, turning interpretability research into usable infrastructure.
San Francisco, USFounded 2024API accessWeekly review
Editorial intelligence brief
What matters now
Announced a $150M Series B in February 2026 while expanding its interpretability research and model tooling.
Focus: Mechanistic interpretability tools for understanding, editing, training, and monitoring AI models
Latest funding
$150M
Series B · source-backed
Tracked funding
$150M
Sum of itemized funding events
Latest valuation
$1.3B
Valuation
Latest revenue
Not tracked
Growth lifecycle position
Source-backed financial history
Capital and commercial trajectory
Funding, valuation, revenue, and debt are kept separate so unlike measurements are never presented as one trend.
Records
1
Tracked total
$150M
Coverage
partial
#1
Series B · $150M
Running tracked total: $150M
Every numbered chart marker maps to one source-linked funding announcement below.
Goodfire ↗ source for Series B $150M
Chronological activity
What changed
Announced a $150M Series B in February 2026 while expanding its interpretability research and model tooling.
A structured event record is still being assembled for this company.
Recent coverage of Goodfire
Consolidated by storyGoodfire's New Tool Lets Engineers See Inside a Language Model While It Is Still Being Trained and That Changes Everything About AI Safety
Startup Fortune · Apr 30
AI Lab Goodfire Raises $150M at $1.25B Valuation to Design Models with Interpretability
PR Newswire · 2 related sources · Feb 5
Startup Goodfire Notches $1.25 Billion Valuation to Decode AI Models
Bloomberg.com · Feb 5
Product surface
Products and model families
Recent models
No standalone model family is structured for this profile.
Products
EmberGoodfire API
Open weights
No
API access
Yes
Review cadence
Weekly
Market position
Lifecycle and strategic signals
Research
Preview
Growth
Deployment
Growth: Public access & scaling
Focus
Mechanistic interpretability tools for understanding, editing, training, and monitoring AI models
Signals
AI researchSafetyDeveloper tooling
Taxonomy
Frontier LabsSafetyDeveloper tools
Competitive context
AnthropicPatronus AIWeights & Biases
Infrastructure & distribution
Where Goodfire sits in the AI stack
01
Model layer
No standalone model family tracked
02
Access layer
Managed API
03
Market layer
Vertical + Enterprise
Public product surface
EmberGoodfire API
Stack signals
SafetyDeveloper toolsAI researchDeveloper tooling
This section reflects publicly visible product and access signals. Undisclosed GPU, cloud, training, and data-center contracts are not inferred.
Evidence trail
Sources and corrections
Primary and public sources used to verify the structured company profile.
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