Verify every agent change before it ships.

Turn agent traces into deterministic test environments. Re-run every model, prompt, and tool change before production.

Private beta · For teams shipping autonomous, tool-heavy agents in production.

Private by design

Your traces, replay environments, and signed reports stay controlled from ingestion through verdict.

Model & stack agnostic

Works above your tracing, model, prompt, tool, and MCP layers instead of replacing them.

Change impact reports

Every model, prompt, or tool change resolves into quality, cost, latency, and reliability deltas.

Auditable & reproducible

Pinned seeds, suite versions, budgets, and trajectory replays make the verdict defensible.

HOW IT WORKS

Agents fail in production.
Catch them before.

Works with your current stack.

  • Langfuse
  • OpenTelemetry
  • Braintrust
  • Weights & Biases
  • Anthropic
  • OpenAI
  • Gemini
  • OpenRouter
Trace in.

Your traces become a deterministic replay environment.

Re-execute.
+34%v3 candidatev2 baseline

Swap a model, prompt, or tool. One variable changes.

Verdict out.
DECISION · RUN 0488policy_adherence ≥ 0.90latency_p95 ≤ 1.4sregressions = 0DEPLOY

Deploy / review / block. Signed in 72 hours.

CHANGE IMPACT REPORT

See what changed before the change reaches production.

  • Compare every model, prompt, tool, or MCP change against the pinned baseline.
  • Same scenarios. Same seeds. Like-for-like.
  • Quality, cost, latency, and reliability deltas, side by side.
  • One verdict per change: deploy, review, or block.
RUN 0488BASELINE VS CHALLENGER
QUALITY+4.2%
COST-9.1%
LATENCY+0.22s
RELIABILITY99.1%
Model swapgpt-5.1 → gpt-5.2
-18%+220msReview
Prompt editrefund policy v12
+3%-90msDeploy
Tool changeMCP billing server
+11%+480msBlock

Built on open research and open infrastructure.

Taso is the commercial product. The substrate underneath it is open and credible.

PUBLIC BENCHMARKS

Strategy Bench

Repeated match-play across planning, deception, cooperation, and risk tolerance produces a behavioral fingerprint, not a leaderboard. Hosted on ClashAI as a public benchmark.

RESEARCH

Deterministic Reward Hacking

Identifies agents optimizing the metric instead of doing the work, the failure mode observability misses. NeurIPS 2026 submission.

OPEN SOURCE

Environments, Adapters, and Scorers

MIT-licensed environments, adapters, and inspect_ai-compatible scorers behind every Taso report.

All three are built on the same substrate: pinned fairness, reproducible artifacts, deterministic re-execution. The methodology behind every Taso report.

Currently in private beta.

Request access to Taso Labs.

We're working with a small set of design partners shipping agents in production. Two-week pilots, fixed fee, one workflow, one signed report. Earlier than that? If you're building agents and the validation gap is on your mind, tell us what you're working on. We read everything.