Will streaming AI in Rails kill my server?

Not at small scale — use Solid Queue, limit concurrency. Watch WebSocket memory.

Does this work with GPT-4o-mini?

Yep, any OpenAI chat model with stream: true. Cheaper tokens too.

Turbo Streams or bust, or can I use raw JS?

Turbo's zero-JS promise holds; Stimulus is minimal. Raw ActionCable JS works but uglier.

Rails Finally Streams OpenAI Tokens Without the Spinner Hell

Rails devs have endured endless spinners while GPT chews on prompts. This ActionCable-Turbo-OpenAI combo flips the script: real-time token streaming, no JS nightmares.

theAIcatchup Apr 09, 2026 4 min read

Flow diagram: OpenAI SSE to Rails job to ActionCable to Turbo Streams in browser

⚡ Key Takeaways

ActionCable + Turbo Streams deliver real-time OpenAI token streaming in Rails with minimal JS. 𝕏
Background jobs handle the stream; batch DB writes to avoid overload. 𝕏
Scales for prototypes but watch WebSocket costs at production volume. 𝕏

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theAIcatchup

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#ActionCable #ActionCable streaming #Hotwire #OpenAI Rails #OpenAI SSE #OpenAI streaming #Rails #Rails AI #Rails ActionCable #Streaming AI #Turbo Streams #real-time chat

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