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Comparison · Infra & APIs
Ably vs Depot
A side-by-side editorial comparison of Ably and Depot — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Depot: at a glance
| Feature | Ably | Depot |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 5.0 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | realtime-infrastructure, ai-transport, sdk-releases, pub-sub | ci-cd, container-builds, sandboxes, ai-agents |
| Last editorial update | 1d ago | 2d ago |
| Website | — | — |
What is Ably?
Ably is bending its realtime stack toward AI-agent transport
Ably keeps shipping across its full SDK matrix — JS, Cocoa, Dart, Chat — while concentrating its newest energy on an AI Transport JS SDK that has moved from v0.2 to v0.4 in under two months. The core Pub/Sub and LiveObjects surfaces get steady maintenance plus new dashboard visibility work.
What is Depot?
Depot is growing from a build accelerator into a full CI and agent-sandbox platform.
Depot's recent releases cluster around its CI product reaching general availability (API and CLI GA, native step retries, durable cache disks, test-result ingestion) plus a Sandbox SDK for running agent-generated code. The company is clearly broadening past its original remote-build-cache niche. The cadence is high and feature-dense.
Ably vs Depot: editorial side-by-side
Ably
5.0INFRA · APIS
Ably is bending its realtime stack toward AI-agent transport
◆ Current state
Ably keeps shipping across its full SDK matrix — JS, Cocoa, Dart, Chat — while concentrating its newest energy on an AI Transport JS SDK that has moved from v0.2 to v0.4 in under two months. The core Pub/Sub and LiveObjects surfaces get steady maintenance plus new dashboard visibility work.
◆ Where it's heading
The AI Transport SDK is where Ably is placing its directional bet: session/run models, branching conversations, human-in-the-loop handoff, and now external data hydration all point at owning the realtime layer for agent applications. In parallel the mainline JS client is formalizing React-first ergonomics and deprecating its v1 callback API.
◆ Prediction
Expect the AI Transport SDK to hold its rapid cadence toward a 1.0, and the newly released Dart SDK to follow the same early-adoption-to-stable path.
Depot
6.3INFRA · APIS
Depot is growing from a build accelerator into a full CI and agent-sandbox platform.
◆ Current state
Depot's recent releases cluster around its CI product reaching general availability (API and CLI GA, native step retries, durable cache disks, test-result ingestion) plus a Sandbox SDK for running agent-generated code. The company is clearly broadening past its original remote-build-cache niche. The cadence is high and feature-dense.
◆ Where it's heading
Two arcs are visible: hardening CI into a complete, programmable system (retries, caching, test reporting, an OpenAPI-described API), and staking out the agent-execution space with an ephemeral Sandbox SDK. Both target teams that want builds, CI, and untrusted-code execution from one vendor. Expect the Sandbox SDK to move toward GA and CI to keep filling parity gaps with incumbents.
◆ Prediction
Next likely: the Sandbox SDK exits private beta, and CI adds more of the surface teams expect (broader test-framework ingestion, richer run analytics) now that its API and CLI are GA.
Alternatives to Ably and Depot
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Ably or Depot.
Resend
Resend ships a tight, frequent changelog: richer email content and deeper dev-tool reach
Unleash
Unleash reframes feature flags as agentic 'runtime control,' aimed straight at LaunchDarkly.
ToolJet
ToolJet widens its data-source layer — AI sources included — on a fast LTS/beta release train.
GitHub
GitHub bends toward enterprise AI governance while retiring its standalone Models offering.
Bugsnag
BugSnag is compounding on mobile observability and AI-assisted debugging
Recent activity from Ably and Depot
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoAblyAbly AI Transport SDK adds external data hydration
- 7d agoDepotSnapshot enhancements for Depot CI
- 10d agoAblyCocoa SDK fixes push registration after reboot
- 14d agoAblyAbly AI Transport SDK moves to declarative codecs
- 14d agoAblyJS SDK React hooks infer channel from ChannelProvider
- 14d agoDepotSOCI v2 support for Depot container builds
- 15d agoDepotSandbox SDK is now available in private beta ⚡
- 21d agoDepotNative step retries in Depot CI
- 23d agoDepotDurable cache disks for Depot CI jobs are now available in beta
- 24d agoAblyImproved visibility into LiveObjects
- 25d agoAblyJS SDK patch restores mockable v1 callback types
- 29d agoDepotDepot CI API and CLI are now generally available
Frequently asked questions
What is the difference between Ably and Depot?
They serve adjacent needs but don't currently overlap on shipped themes. Depot is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Ably better than Depot?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Depot is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Ably?
Top Ably alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Ably alternatives" section above for the current picks, or visit /alternatives/ably for the full list with editorial commentary on each.
What are the best alternatives to Depot?
Top Depot alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Depot alternatives" section above for the current picks, or visit /alternatives/depot for the full list with editorial commentary on each.