Show HN: Completely free Claude Sonnet 4.5, supported by contextual ads

Hey HN, I'm Namanyay from https://gigamind.dev/.

One of the most empowering applications of LLMs is enabling non-technical people to build apps and products. This value is reflected in the revenues of companies like Lovable and Bolt. Many of Giga's paying customers are business executives building valuable automations and internal tools that increase efficiency.

But, the incumbents currently operate on pay-as-you-go pricing, which is a predatory business model that I ethically disagree with. I believe the future of vibe coding tool pricing needs to be outcome based vs PAYG. The latter often feels like being held "hostage" over time, when there's vendor lock-in, and especially when the marketing promises are not met.

One step towards that is providing free or low cost inference. The user can continue building till they reach the desired outcome for a longer duration, which is possible if we can somehow make the inference cost negligible. And, the most proven model for offering free stuff online has been ads.

That's why, I've combined the two. I'm offering completely free Claude Sonnet 4.5 for use in Claude Code to empower a new segment to start building with AI.

Launch video (420k+ views): https://twiiit.com/NamanyayG/status/1982939951571591438

How it works:

- We are backed by sponsors. - We inject ads in the responses (a mix of contextual and static). E.g., if you ask about the best AI agentic memory tools, we'll recommend our sponsor https://supermemory.com/ - We store conversations for training or sharing with partners (transparently we are not data sharing right now, but retain the right to do so in the future). - We rate limit dynamically to allow fair usage for all our users. - We are offering the best Claude models for now. Depending on sponsorship, we might have to transition to free or OSS models down the line (e.g. grok-fast-1 or gpt-oss). - Our business actually makes revenue from our premium tool, https://gigamind.dev/context, which creates AI rules file for your project like AGENTS.md automatically.

How to try:

- Register on https://free.gigamind.dev/ - We provide you with an API key and a Claude Code compatible proxy URL. - With a few lines of environment variable changes, you get to use Claude Code, for free. - We'll run out of money if we serve everyone from HN today, so only the first 2⁶ people with coupon code `1337HN` get auto-accepted immediately.

Excited to hear your thoughts!