Retrace vs Temporal AI

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-19
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At a glance

DimensionRetraceTemporal AI
Best ForDebugging and iterating on multi-step AI agent runsReliable AI agents, microservices orchestration, long-running workflows
Core ApproachReplay and fork agent runs in sandbox for debuggingDurable execution with automatic state capture and recovery
Key IntegrationsLangChain, CrewAI, AutoGen, OpenAI, AnthropicOpenAI Agents SDK, Google ADK, Slack, Kubernetes, Docker
DeploymentCloud or on-prem (Enterprise)Cloud (Temporal Cloud) or self-hosted (open-source)
Latest News ImpactNo product news in latest (news about unrelated retractions)Usage-based billing for cost transparency; Custom Roles pre-release

If you need a robust orchestration engine to build fault-tolerant AI agents and workflows that survive crashes, Temporal is the obvious choice. If your pain point is debugging existing agent runs—replaying and forking them to find issues—Retrace is purpose-built for that. Many teams may benefit from both: use Temporal for production execution and Retrace for debugging. Choose Temporal for durability at scale; choose Retrace for deep agent debugging.

Retrace
Retrace

Retrace records every AI agent run, forks the failing step, and replays it to prove your fix before you ship.

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Temporal AI
Temporal AI

Durable execution platform that keeps AI agents and long-running workflows alive through crashes, retries, and abandoned sessions.

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Pricing
Freemium
Freemium
Plans
$0/mo
$29/mo
$99/mo
$399/mo
$24,000/yr billed annually
$0 ($150 credits for 90 days)
Starting at $50 per million actions
Greater of $500/mo or 10% of usage
Custom
Popularity
8 views
7.5k views
Skill Level
Advanced
Advanced
API Available
Platforms
WebAPICLI
WebAPI
Categories
📡 LLM Observability & Evals
🕸️ Agent Frameworks & Orchestration⚙️ Developer Infrastructure
Features
Record every LLM call, tool call, cost, and error with one @retrace.record decorator
Fork from any span in a recorded run and re-run the branch in a sandbox
Prove-the-fix verdict: improved, regressed, or unchanged
Cassette VCR deterministic replay for repeatable re-runs
Real-time streaming of agent events onto a scrubbable timeline
Guardrails and circuit breakers that halt a run on loops, steps, or budget ceilings
Pre-call enforcement gateway with hold-for-approval to block bad actions before they run
MAST failure taxonomy: auto-classification into 14 failure modes
Detection for hallucination, groundedness gaps, drift, and failure clustering
CI regression gates that fail the build on agent regressions
LLM-judge evaluations, auto eval-rules, and datasets
Multi-agent session tracing with causal graphs and agent topology
Agent memory inspection, prompt versioning, and shareable tapes
Semantic search: describe the bug in plain language
OpenTelemetry ingest and one-decorator SDK for Python and TypeScript agents
Durable execution captures Workflow state at every step with no checkpointing or recovery code
Native SDKs for Go, Java, Python, TypeScript, .NET, PHP, Ruby, and Rust
Activities retry automatically with backoff, four timeout classes, and heartbeating
Signals, Queries, and Updates read and mutate running Workflows mid-flight
Workflow Streams for real-time interactivity with running executions
Durable AI agents via OpenAI Agents SDK and Google ADK running LLM and tool calls as Activities
Standalone Activities as a durable job-queue pattern, GA across six SDKs (2026-09-15)
Serverless Workers for Google Cloud Run, public preview (2026-10-05)
Serverless Workers for AWS Bedrock AgentCore, pre-release (2026-09-18)
Native Task Queue priority and fair distribution without a custom queueing layer
Durable Timers that sleep for months; cron Schedules with backfill and Continue-As-New
Saga pattern via compensating transactions that read like try/catch
Worker Versioning pins Workflows to a version so deploys don't corrupt in-flight runs
Cloud UI Strict Session Mode: 15-minute inactivity timeout, 12-hour max session (GA)
Replay tests validate against real histories; time-skipping tests fast-forward long timers in CI
Integrations
LangChain
CrewAI
LlamaIndex
OpenAI
Anthropic
Gemini
GitHub
OpenAI Agents SDK
Google ADK
AWS Lambda
Google Cloud Run
Amazon Bedrock AgentCore
Kubernetes
GitHub Actions
GCP Marketplace
Azure
Slack

What real users say: Retrace vs Temporal AI

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

Retrace

47 mentions across 3 sources · 35% positive — critical (averaged across 3 sources)

Hacker News, GitHub, Lemmy

What users praise

  • • Fork and replay agent runs to reproduce and fix failures deterministically.
  • • Step-by-step execution timeline with full state inspection at each turn.
  • • Side-effect free re-runs: no external API calls during replay forks.
  • • Integrates directly with LangChain, CrewAI, AutoGen, and custom SDKs.

What frustrates them

  • • Code changes during replay cause divergence, limiting what-if experimentation.
  • • Very limited community presence, making peer support scarce.
  • • No Reddit, YouTube, or Product Hunt coverage to evaluate real-world usage.
  • • Notion of separate open-source project with same name causes confusion when searching online.

Researched Jul 3, 2026

Temporal AI

No verifiable community signal. We scanned public discussion on Oct 14, 2026 and found posts matching the name “Temporal AI”, but could not establish that they are about this product rather than something else sharing its name. Rather than publish a score built on the wrong subject, we publish none.

Who should pick which

  • AI agent developer
    Pick: Retrace

    Retrace's replay and fork capabilities make debugging agent runs fast and reproducible, which is critical during development.

  • Platform engineer building reliable workflows
    Pick: Temporal AI

    Temporal's durable execution ensures workflows survive failures, with automatic retries and state capture – essential for production orchestration.

  • Solo founder
    Pick: Temporal AI

    Temporal's free self-hosted option and pay-as-you-go cloud allow starting at zero cost, while Retrace's free Hobby tier is also good but limited in features.

  • Research team iterating on agent architectures
    Pick: Retrace

    Retrace's diff view and step-by-step inspection help compare different agent configurations easily.

  • Enterprise needing end-to-end reliability and debugging
    Pick: Temporal AI

    Temporal provides production-grade orchestration; pair with Retrace for debugging. But if one tool, Temporal wins for durability and scalability.

Frequently Asked Questions

Retrace vs Temporal AI: which should you choose?

If you need a robust orchestration engine to build fault-tolerant AI agents and workflows that survive crashes, Temporal is the obvious choice. If your pain point is debugging existing agent runs—replaying and forking them to find issues—Retrace is purpose-built for that. Many teams may benefit from both: use Temporal for production execution and Retrace for debugging. Choose Temporal for durability at scale; choose Retrace for deep agent debugging.

Can Temporal AI replace Retrace for debugging?

No, Temporal is focused on durable execution, not debugging. Retrace is purpose-built for replaying and forking agent runs to find issues.

Can Retrace be used for production orchestration?

No, Retrace is a debugging and observability tool, not an orchestration engine. Use Temporal for running workflows in production.

Which tool is better for AI agent workflows?

Both: Temporal for reliable execution, Retrace for debugging. They complement each other.

Does Temporal support human-in-the-loop?

Yes, via signals and pause/resume, allowing human intervention during workflow execution.

Is Retrace free for hobbyists?

Yes, Retrace offers a free Hobby tier, but with limited features and scale.

Can I self-host Temporal?

Yes, Temporal is open-source and can be self-hosted for free.

Does Retrace integrate with OpenAI?

Yes, Retrace integrates with OpenAI, Anthropic, Hugging Face and many agent frameworks.

Which tool is more suitable for enterprise?

Temporal Cloud offers custom roles (pre-release) and usage-based billing, making it enterprise-ready. Retrace Enterprise offers on-prem and RBAC.

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Last reviewed: July 3, 2026