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Comparison · Infra & APIs
Ably vs Dub
A side-by-side editorial comparison of Ably and Dub — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Dub: at a glance
| Feature | Ably | Dub |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 6.3 | 0.0 |
| Sparks · 30d | 1 | 0 |
| Top themes | realtime-infrastructure, ai-agents, durable-execution, liveobjects | partner programs, affiliate marketing, link management, attribution |
| Last editorial update | 1d ago | 3mo ago |
| Website | — | — |
What is Ably?
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
What is Dub?
Dub keeps building Dub Partners into a serious partner-program OS — staggered rewards, group rules, analytics depth.
Dub is in a sustained build-out of Dub Partners alongside the original link product. The recent window added staggered reward durations (e.g. 25% for the first 12 months, 10% after), automatic group moves when partners hit performance milestones with audit history, bulk partner invites with customizable emails, multi/negative analytics filters across partners and links, Stripe free-trial tracking as lead events, and Viewer/Billing workspace roles for finer-grained access.
Ably vs Dub: editorial side-by-side
Ably
6.3INFRA · APIS
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
◆ Current state
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
◆ Where it's heading
Ably is treating agent conversations as a transport problem — sessions, resumability, and multi-client reconciliation — rather than as a model-integration problem, and the primitives shipping in AI Transport keep pointing that way. The Pub/Sub line is being pulled along behind it: LiveObjects path APIs and React hooks are the state layer those agent sessions need. The pre-1.0 SDK will keep breaking as the shape settles, which is a reasonable trade while the category is unsettled.
◆ Prediction
Expect AI Transport to keep adding provider codecs beyond OpenAI Responses and to approach an API freeze as breaking changes get more expensive. LiveObjects support should continue spreading across the language SDKs, following the Java path-based API with other platforms.
Dub
0.0INFRA · APIS
Dub keeps building Dub Partners into a serious partner-program OS — staggered rewards, group rules, analytics depth.
◆ Current state
Dub is in a sustained build-out of Dub Partners alongside the original link product. The recent window added staggered reward durations (e.g. 25% for the first 12 months, 10% after), automatic group moves when partners hit performance milestones with audit history, bulk partner invites with customizable emails, multi/negative analytics filters across partners and links, Stripe free-trial tracking as lead events, and Viewer/Billing workspace roles for finer-grained access.
◆ Where it's heading
The partner program is becoming the gravity well. Each release either deepens program operators' control (commission shapes, automated tiering, role-based access) or improves the analytics layer that justifies those decisions. The Stripe trial tracking suggests Dub wants to own the full attribution chain from click to subscription, not just clicks. Cadence is steady and clearly themed.
◆ Prediction
Expect more commission/tiering primitives — bonuses, tier overrides, retroactive adjustments — and tighter Stripe/attribution coupling that handles refunds and churn natively. A formal marketplace for discovering vetted partners is plausible once individual-partner-page features mature.
Alternatives to Ably and Dub
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 Dub.
werf
Four channels, one fix stream — werf's releases are mostly concurrency repairs.
ZoneMinder
1.38.4 is a security release in all but name, closing ACL gaps across the API.
Infisical
PAM and PKI now take up most of the lines in Infisical's release notes.
Biome
Biome's patch train keeps adding rules — and is quietly growing a Markdown linter.
DNSControl
DNSControl is rewriting its record internals in public, one release candidate at a time
Recent activity from Ably and Dub
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyPub/Sub JS SDK v2.27.0: Fallback for networks that block WebSockets
- 11d agoAblyAI Transport JS SDK v0.7.0: OpenAI Responses codec ⚡
- 18d agoAblyPub/Sub JS SDK v2.26.0: React hook for LiveObjects
- 21d agoAblyAI Transport JS SDK v0.6.0: Mid-run steering
- 25d agoAblyPub/Sub JS SDK v2.25.0: Push notifications for React Native
- 29d agoAblyJava SDK v1.8.0: Support LiveObjects Path based API
- 5mo agoDubStaggered reward durations
- 5mo agoDubGroup move rules
- 5mo agoDubBulk invite partners (and other updates)
- 5mo agoDubAdvanced analytics filters
- 6mo agoDubSupport for tracking Stripe free trials
- 6mo agoDubBetter security with the new viewer and billing roles
Frequently asked questions
What is the difference between Ably and Dub?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 6.3 vs 0.0), 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 Dub?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 6.3 vs 0.0), 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 Dub?
Top Dub alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Dub alternatives" section above for the current picks, or visit /alternatives/dub for the full list with editorial commentary on each.