GravityKit
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Comparison · Infra & APIs
Ably vs Jaeger
A side-by-side editorial comparison of Ably and Jaeger — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Jaeger: at a glance
| Feature | Ably | Jaeger |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 3.8 |
| Sparks · 30d | 2 | 1 |
| Top themes | ai transport, realtime messaging, agents, mau-billing | sql-query, mcp, clickhouse, trace-search |
| Last editorial update | 21h ago | 8d 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 Jaeger?
Jaeger 2.23 lets people and agents query traces in SQL.
Jaeger 2.23 adds a SQL query surface that compiles to its RFC 0005 structured filters, and the MCP search_traces tool now accepts a SQL statement. Storage search capabilities are exposed over api_v3 HTTP and gRPC, and ClickHouse now routes structured filters into SQL WHERE clauses. The release also breaks things: unused ClickHouse feature gates are gone, schema creation needs an explicit table engine, and the Gemini reference sidecar is removed.
Ably vs Jaeger: 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.
Jaeger
3.8INFRA · APIS
Jaeger 2.23 lets people and agents query traces in SQL.
◆ Current state
Jaeger 2.23 adds a SQL query surface that compiles to its RFC 0005 structured filters, and the MCP search_traces tool now accepts a SQL statement. Storage search capabilities are exposed over api_v3 HTTP and gRPC, and ClickHouse now routes structured filters into SQL WHERE clauses. The release also breaks things: unused ClickHouse feature gates are gone, schema creation needs an explicit table engine, and the Gemini reference sidecar is removed.
◆ Where it's heading
Since merging MCP into the query service in July, Jaeger has been rebuilding search: trace summaries, then span search and pagination, now SQL. Each release makes the query layer more expressive and more usable by AI agents, while ClickHouse becomes the backend that gets the new capabilities first.
◆ Prediction
Expect the SQL surface and structured filters to move from new to beta or stable over the next releases, with more backends routing filters natively like ClickHouse does now.
Alternatives to Ably and Jaeger
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 Jaeger.
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.
Recent activity from Ably and Jaeger
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
- 9d agoJaegerSQL queries for traces, in the API and the MCP tool ⚡
- 1mo agoJaegerSpan search and pagination reach the query service
- 2mo agoJaegerClickHouse goes stable; unused v1 HTTP endpoints removed
- 3mo agoJaegerMCP merges into the query service; Elasticsearch 6 support removed ⚡
- 5mo agoJaegerLightweight trace-summaries endpoint arrives in the v3 API
- 6mo agoJaegerHeader forwarding to storage backends and UI base-path autodetection
Frequently asked questions
What is the difference between Ably and Jaeger?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 3.8), with 2 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Ably better than Jaeger?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 3.8), with 2 editorial sparks in the last 30 days against 1. 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 Jaeger?
Top Jaeger alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jaeger alternatives" section above for the current picks, or visit /alternatives/jaeger for the full list with editorial commentary on each.