# Tracer

> Tracer is a Y Combinator backed research lab helping AI teams improve
> performance per token through intelligence allocation and coordination.
> Echo is Tracer's latest product, available through one OpenAI-compatible
> endpoint for chat, reasoning, code, and agent harnesses.

Canonical site: https://tracerml.ai/

Last updated: 2026-08-26

## Product

- [Echo](https://echo.tracerml.ai/): Use Echo in the hosted chat interface.
- [Echo API documentation](https://echo.tracerml.ai/docs/api): Connect through
  the OpenAI-compatible API, including from OpenCode and compatible agent
  harnesses.
- [Echo API keys](https://echo.tracerml.ai/account#api-keys): Create and manage
  API access.

Echo presents one public model named `echo`. Behind that stable interface, the
system allocates different capabilities and amounts of computation according
to the work. Users do not choose internal models or modes.

## Research thesis

- Intelligence is a system property.
- Organization can create capability.
- An ensemble matters only when the coordinated whole beats its strongest
  measured component.
- Quality, latency, and cost must be evaluated end to end in the same harness.
- Self-organizing intelligence is a research direction, not a current product
  claim.

Tracer studies coordinated intelligence, adaptive inference, interpretable
orchestration, and agentic systems. The work targets more independent, useful
evidence per dollar.

## Work with Tracer

Tracer works with teams that care about inference cost, token efficiency, and
model performance. The lab applies intelligence allocation and coordination to
help teams get better outcomes with less wasted computation.

- [Book a 30-minute inference review](https://cal.com/adam-rida-tracer/30min)

## Research lineage

- [Pricing Capability](https://tracerml.ai/research/pricing-capability/): A
  research article examining Google's selected $10 million bid for a Spirit
  Aviation package of deidentified operational records and internally developed
  software. Capability Alpha measures the task
  improvement attributable to data under controlled evaluation. Price-Implied
  Uplift works backward from an observed price. Under the paper's assumptions,
  the Spirit case implies a 0.236% threshold. Three recurring public-company
  agreements form a standardized 0.58%-1.42% reference range; conditional
  buyer-specific scenarios span approximately $50 million to $200 million.
- [Pricing Capability paper](https://tracerml.ai/research/pricing-capability/pricing-capability-paper.pdf):
  The complete 21-page final submission, dated August 25, 2026. It includes the
  Spirit valuation scenarios and public-transaction calculations.
- [TRACER: Learning When to Defer](https://tracerml.ai/research/tracer-oss/):
  A plain-language and technical account of trace-based, parity-gated routing
  for fixed-label LLM classification.
- [TRACER open source](https://github.com/adrida/tracer): Trace-driven,
  parity-gated inference and interpretability tools.
- [TRACER paper](https://arxiv.org/abs/2604.14531): Trace-Based Adaptive
  Cost-Efficient Routing for LLM Classification.
- [Research programs](https://tracerml.ai/#research): Current research themes.

## Evidence and company information

- [Case studies](https://tracerml.ai/case-studies/): Dated production evidence
  from Tracer's earlier efficiency work.
- [Research notes](https://tracerml.ai/blog/): Technical and product writing.
- [Changelog](https://tracerml.ai/changelog/): Dated updates.
- [GitHub](https://github.com/adrida/tracer): Public code and documentation.
- [Book a call](https://cal.com/adam-rida-tracer/30min): Discuss inference cost,
  token efficiency, and model performance with the team.

## Naming

- Organization: Tracer
- Product: Echo
- Public API model identifier: `echo`
- Primary domain: `tracerml.ai`
- Echo domain: `echo.tracerml.ai`

Echo exposes one public model and one endpoint. Its internal allocation is not
described as a fixed number of models, a simple switch, or autonomous
self-organization. TRACER OSS is Tracer's open-source classification-routing
project; Echo is Tracer's current adaptive AI system.