Alternatives · Sider
Updated · By llmwise, AI-assisted.
Sider alternative: plans, limits and who should pick which
Sider's cheapest paid plan is $25 a month. It names no message count for any paid plan, so there's no price per message to compare. For $20 a month, llmwise Pro counts every model: up to 31 Claude Fable 5.1 messages a month ($0.65 each). One thing only Sider has: an AI browser agent that acts on real websites.
Checked : Sider pricing.
Sider, in Sider's words
“Understand anything with GPT-6, Claude Fable 5.1, DeepSeek, Gemini, and more”
Source: Sider pricing
“All plans include all features”
Source: Sider pricing
“Automate tasks across real websites with an AI browser agent”
Source: Sider pricing
Sider's plans
Apps like Sider reprice often; each row quotes its plan as the page put it.
| Plan | Price | Sider's line | Messages it states |
|---|---|---|---|
| Lite | $25 a month | “Lite: US$25/ mo” (Sider pricing) | None published |
| Pro | $50 a month | “Pro: US$50/ mo” (Sider pricing) | None published |
| Max | $100 a month | “Max: US$100/ mo” (Sider pricing) | None published |
Which costs less per message, Sider or llmwise?
Sider publishes no price and count together, so there's no price per message to set beside llmwise's. Here's llmwise Pro's ($20), model by model.
| Plan and model | Count | Per message |
|---|---|---|
| llmwise Pro, Claude Fable 5.1 | Up to 31 a month | $0.65 |
| llmwise Pro, GPT-6 Astra | Up to 31 a month | $0.65 |
| llmwise Pro, Claude Sonnet 5 | Up to 125 a month | $0.16 |
Behind those counts sits Pro's fair-use limit, $7.50 of AI cost a month. Typical messages stay under it for the whole month; very large prompts and heavy research may not. Every limit, explained.
Which of these models passed our test prompts?
Claude Fable 5.1, GPT-6 Astra, and Claude Sonnet 5, each sent our 50 test prompts.
| Prompt type | Claude Fable 5.1 | GPT-6 Astra | Claude Sonnet 5 |
|---|---|---|---|
| Writing | 3 of 5 | 5 of 5 | 4 of 5 |
| Summarization | 3 of 5 | 5 of 5 | 3 of 5 |
| Data analysis | 5 of 5 | 5 of 5 | 4 of 5 |
| Support replies | 4 of 5 | 3 of 5 | 5 of 5 |
| Overall | 45 of 50 | 48 of 50 | 46 of 50 |
Full marks all round on coding, math, translation, SQL, answering from documents, and tool use. Each cell counts passes out of 5, from our runs of September 27, 28, 29 and October 2, 7, 8, 9, 15, 2026. The prompts, with every answer.
Should you pick Sider or llmwise?
This part is our opinion; the quotes above are Sider's.
Pick Sider if…
You want an AI browser agent and a cloud computer that runs tasks for you, at $25 a month and up.
Pick llmwise over Sider if…
You mainly chat: llmwise starts at $20 with each model's count shown before you send, including Claude Fable 5.1 and GPT-6 Astra.
What Sider adds
An AI browser agent that acts on real websites. A dedicated cloud computer on its Max plan.
Other multi-model chat apps
Also from primary sources: Sider's Chrome Web Store listing (several companies' models in one browser sidebar). Read .
Questions about Sider
How much does Sider cost?
Lite: $25 a month; Pro: $50 a month; Max: $100 a month (from Sider's own page, checked September 2026).
Per message, which is cheaper: llmwise or Sider?
Without a message count from Sider, its price per message can't be worked out. llmwise Pro gives up to 31 Claude Fable 5.1 messages a month ($0.65 each).
What can Sider do that llmwise can't?
An AI browser agent that acts on real websites. A dedicated cloud computer on its Max plan. llmwise's answer: You mainly chat: llmwise starts at $20 with each model's count shown before you send, including Claude Fable 5.1 and GPT-6 Astra.
Sider or llmwise? Count the messages first
Sider publishes no message count to price. On llmwise Pro ($20), a Claude Fable 5.1 message costs as little as $0.65, and a GPT-6 Astra one $0.65.