GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
Comparison · Infra & APIs
Ably vs Windsurf
A side-by-side editorial comparison of Ably and Windsurf — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Windsurf: at a glance
| Feature | Ably | Windsurf |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 0.0 |
| Sparks · 30d | 2 | 0 |
| Top themes | ai transport, realtime messaging, agents, mau-billing | devin-integration, agent-native-ide, model-availability, subscription-bundling |
| Last editorial update | 21h ago | 3mo ago |
| Website | — | Visit → |
What is Ably?
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
What is Windsurf?
Windsurf's own feature list has thinned out; what ships now is Devin arriving one surface at a time.
Across this stretch of the changelog, nearly every substantive release is a Devin capability landing inside the editor: the agent itself, Devin for Terminal, then Devin Review and Quick Review extended to all users on their existing subscription. The IDE-native work that remains is packaging around that — an agent inbox, session sorting, Windows stability. The other recurring release type is simply making new frontier models selectable.
Ably vs Windsurf: editorial side-by-side
Ably
7.5INFRA · APIS
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
◆ Current state
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
◆ Where it's heading
The November releases fit one plan: split clients so MAU billing can count end users, then make the AI layer a thin adaptor on top of the same channels used for chat, presence and LiveObjects. Server-side additions in Java and JS (HTTP LiveObjects, channel pools, a Temporal plugin) point at agent backends as the intended publisher.
◆ Prediction
Expect more agent framework adaptors and server SDKs reaching AI Transport parity, with Chat and LiveObjects examples built around agents joining human conversations.
Windsurf
0.0INFRA · APIS
Windsurf's own feature list has thinned out; what ships now is Devin arriving one surface at a time.
◆ Current state
Across this stretch of the changelog, nearly every substantive release is a Devin capability landing inside the editor: the agent itself, Devin for Terminal, then Devin Review and Quick Review extended to all users on their existing subscription. The IDE-native work that remains is packaging around that — an agent inbox, session sorting, Windows stability. The other recurring release type is simply making new frontier models selectable.
◆ Where it's heading
Windsurf is converging on being the interface layer for Cognition's agent rather than an independently evolving editor. The pattern in these entries is consistent: a Devin surface ships, then it is unbundled from a separate purchase and folded into the existing subscription. Meanwhile the editor's own release notes are increasingly bug fixes and model availability notices, which is what a front end looks like when the differentiation has moved behind it.
◆ Prediction
Expect the next notable releases to be further Devin surfaces reaching general availability on the existing subscription rather than new editor features, and continued same-week model-availability notices. The entries give no signal on whether the JetBrains plugin gets the same Devin surfaces.
Alternatives to Ably and Windsurf
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 Windsurf.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Clair
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
See all Ably alternatives → · See all Windsurf alternatives →
Recent activity from Ably and Windsurf
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyAI Transport 1.0 makes Ably a resumable transport for AI chat ⚡
- 2d agoAblyJava SDK 2.1 reads and updates LiveObjects over HTTP
- 2d agoAblyJS SDK 3.1 adds channel pools and a Temporal plugin
- 4d agoAblyAbly Kafka Connector v4.2.1
- 8d agoAblyMonthly active user (MAU) pricing ⚡
- 8d agoAblyAbly Chat React UI Kit v0.4.0
- 5mo agoWindsurfClaude Opus 4.8 available in Windsurf
- 6mo agoWindsurfClaude Opus 4.7 (fast mode) available in Windsurf
- 6mo agoWindsurfDevin Review & Quick Review included for all IDE users
- 6mo agoWindsurfDevin Review & Quick Review (v2.2.17) ⚡
- 6mo agoWindsurfWindsurf 2.2.17: Devin Review & Quick Review
- 6mo agoWindsurfWindows updates (v2.2.17)
Frequently asked questions
What is the difference between Ably and Windsurf?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 0.0), with 2 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 Windsurf?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 0.0), with 2 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 Windsurf?
Top Windsurf alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Windsurf alternatives" section above for the current picks, or visit /alternatives/windsurf for the full list with editorial commentary on each.