@MaritacaAI is a small company that, despite having fairly decent funding given the technological risk involved, still cannot compare with big tech companies like OpenAI, Anthropic, and Google in terms of funding.
Even so, we manage to offer free access to our Chat and API and make open-source models available for people to try at no cost.
Low ratings like the ones below hurt us.
And those who have grown used to the generosity of big tech companies will also realize, once the AI investment cycle consolidates, that services that are free or subsidized today will cost much more than they do now.
If you believe it is possible to develop cutting-edge technology as an alternative to big tech and support what Maritaca is doing, any help is very welcome: likes on social media, reposts, or positive ratings for the app.
And if you didn't like a feature in one of our products, send an email to support. We take note of everything and work to improve future versions.
But most importantly: if you like our product, subscribe. It helps a lot.
And if you can't subscribe, share it with friends, family, or on social media. That also helps a lot.
If you work at a company, institute, or government agency and use big tech APIs, try Maritaca's. You'll discover that our new S5 and S5-nano models are very competitive in terms of quality for the price.
Maritaca AIMaritaca S5 Free APIModel APIs
Free API access to S5-free (tokens are not billed) for a limited time; 60 requests per minute, 256k input tokens and 256k output tokens per minute
Maritaca AI builds Portuguese and Brazil-focused language models, including S5 and S5 Nano. Its docs list S5-free as a temporary launch offer: API access with no token charges, text only, and no Batch API, Flex or built-in tools. Maritaca's pricing page also lists a free Chat plan with limited access to its features.
LiveVerified Nov 13, 2026 against the official page
- Who qualifies
- Anyone who creates a Maritaca API account. No funding, student or region limits stated on the docs page.
- How to claim
- Create an account at plataforma.maritaca.ai, get an API key and call the model as S5-free. The free Chat plan is at https://www.maritaca.ai/en/pricing
- Expiry
- ongoing
Heads up. S5 Free is a temporary launch offer and may be discontinued at any time; docs say to use paid S5 for ongoing or production use. S5-free accepts text only and does not include Batch API, Flex or built-in tools. Rate limits are fixed at 60 RPM, 256k TPM input and 256k TPM output across all tiers. The rate limits page mentions free initial credits and coupons, but no amount is stated.
Timeline 2
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Official sources
Added Nov 8, 2026 · Last changed Nov 8, 2026
