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Comparison · Infra & APIs

Ably vs Lima

A side-by-side editorial comparison of Ably and Lima — release velocity, themes, recent moves, and the top alternatives to consider.

Ably vs Lima: at a glance

FeatureAblyLima
SectorInfra & APIsInfra & APIs
Velocity score7.55.0
Sparks · 30d20
Top themesai transport, realtime messaging, agents, mau-billingvirtual-machines, containers, windows-support, cross-platform
Last editorial update21h ago12d 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.

Read the full Ably trajectory →

What is Lima?

Lima 2.3 nears release, with a Windows path that drops QEMU and a new TUI

Lima v2.3.0-rc.0 is out with an experimental HCS driver that removes the QEMU dependency on Windows hosts, block device attachment for VZ guests on macOS, and experimental shared, host and bridged networks on Linux hosts. limactl menu adds a menu-based interface, which now opens when limactl runs on a terminal without arguments. The default Ubuntu template moves to 26.10.

Read the full Lima trajectory →

Ably vs Lima: editorial side-by-side

A
Ably
INFRA · APIS
7.5

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.

L
Lima
INFRA · APIS
5.0

Lima 2.3 nears release, with a Windows path that drops QEMU and a new TUI

◆ Current state

Lima v2.3.0-rc.0 is out with an experimental HCS driver that removes the QEMU dependency on Windows hosts, block device attachment for VZ guests on macOS, and experimental shared, host and bridged networks on Linux hosts. limactl menu adds a menu-based interface, which now opens when limactl runs on a terminal without arguments. The default Ubuntu template moves to 26.10.

◆ Where it's heading

The any-guest, any-host direction now reaches all three desktop platforms in one release, and each host gets a feature suited to its own virtualization stack. The menu interface is a different kind of addition: it aims at people who do not want to memorize the CLI. LFX mentees and outside contributors continue to carry much of this work, and the project's experimental-first labeling still applies to the biggest items.

◆ Prediction

A 2.3.0 final is the next step after rc.0. The HCS driver and Linux network modes should stay experimental there, following the pattern earlier platform additions took.

Alternatives to Ably and Lima

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 Lima.

See all Ably alternatives → · See all Lima alternatives →

Recent activity from Ably and Lima

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoAblyAI Transport 1.0 makes Ably a resumable transport for AI chat ⚡
  2. 2d agoAblyJava SDK 2.1 reads and updates LiveObjects over HTTP
  3. 2d agoAblyJS SDK 3.1 adds channel pools and a Temporal plugin
  4. 4d agoAblyAbly Kafka Connector v4.2.1
  5. 8d agoAblyMonthly active user (MAU) pricing ⚡
  6. 8d agoAblyAbly Chat React UI Kit v0.4.0
  7. 14d agoLima2.3.0-rc.0: HCS on Windows, VZ block devices, limactl menu
  8. 1mo agoLima2.3.0-beta.1: VZ block devices and native Windows OpenSSH
  9. 2mo agoLima2.3.0-beta.0: an experimental HCS driver for Windows hosts
  10. 4mo agoLima2.2.0-rc.0: Windows 11 guests and a sudo opt-out
  11. 4mo agoLima2.2.0-beta.0: Windows Server 2025 guests and TPM emulation
  12. 6mo agoLima2.1.2-beta.0: CLI mount and rsync path fixes

Frequently asked questions

What is the difference between Ably and Lima?

They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), 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 Lima?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), 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 Lima?

Top Lima alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Lima alternatives" section above for the current picks, or visit /alternatives/lima for the full list with editorial commentary on each.