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aider vs Strix: pricing and free tier side by side

✓ aider Checked 2026-08-22 · Strix Checked 2026-08-22

aider vs Strix

AMO PIMI They also argued about these things on another page.

aider and Strix are both Coding tools. Pricing, free tiers and language support compared below.

aider-ai

Has a free plan

Completely open-source and free (Apache 2.0), with no subscription model; uses local models (such as Ollama) at zero cost; API call fees depend on the chosen LLM provider

Cheapest paid plan: 官方報價（洽詢）

Chinese support: Partial

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Strix (Open-source)

No free plan on the cloud platform, only a 7-day free trial; the open-source CLI is genuinely free. The pricing page has only two cards, Pro at US$29 per seat per month and Enterprise at custom pricing, and under the Pro card it says 7 day free trial with a Start for free button, which is a trial rather than a permanent free tier; the site does not say whether the trial needs a credit card, nor what the scan limit is during the trial. The open-source CLI can be installed with curl or pipx according to the official docs, with the prerequisites being Docker running plus an LLM API key from any supported provider such as OpenAI, Anthropic or Google, so the software itself is free but the inference cost is paid to the model provider; supported providers are OpenAI, Anthropic, OpenRouter, Google Vertex AI, AWS Bedrock, Azure OpenAI, Novita AI and local models. Scan targets can be local code, a GitHub repo or a live website. The open-source version has no usage or watermark limits, and commercial restrictions are not published. (Read from strix.ai/pricing and docs.strix.ai on 2026-08-09)

Cheapest paid plan: US$29 / mo

Chinese support: Not supported

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Full paid plans compared

aider

PlanPriceWhat you get
API cost (self-selected provider)官方報價（洽詢）Aider itself is free, the cost of LLM API is determined by the provider chosen by the user, usually ranging from US$10-30 per month (light usage) to US$50-200+ per month (heavy usage)

Strix

PlanPriceWhat you get
ProUS$29 / moUS$29/seat/month; the page has no monthly/annual billing toggle, and the official site doesn't publish an annual price. Also noted: Pentests billed separately, pay per test = penetration testing is billed separately per test, and the per-test price isn't published on the official site
Enterprise官方報價（洽詢）Price not published on the official site, requires Get a demo

Which one should you pick?

If you want to try before paying, aider has a free plan and Strix does not — start with aider.

aider has no public paid plan; Strix starts at about US$29 / mo.

FAQ

Is there a free version of aider?

Yes. Completely open-source and free (Apache 2.0), with no subscription model; uses local models (such as Ollama) at zero cost; API call fees depend on the chosen LLM provider

How much does aider cost?

The cheapest is the plan from aider named API cost (self-selected provider), at about 官方報價（洽詢）.

Does aider support Chinese?

aider only partially supports Chinese.

Is there a free version of Strix?

No public free plan — a subscription is required.

How much does Strix cost?

The cheapest is the plan from Strix named Pro, at about US$29 / mo.

Does Strix support Chinese?

Strix has no Chinese interface at this time.

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