Resources // LLM Tokens
AI21 Studio (Jamba)
Offer $10 free, no card
Suits for Non-VC-backedResearchersOpen-source
Updated Jun 2026
The offer
- $10 in free credits for new accounts, no credit card required
- Credits cover all usage of the APIs, the SDK, and the AI21 playground
- Models: Jamba Mini ($0.20 / 1M input, $0.40 / 1M output) and Jamba Large ($2 / 1M input, $8 / 1M output), a hybrid Mamba-Transformer design with long context (up to 256K tokens)
- Also access to Maestro (AI planning / orchestration) and the broader foundation-model APIs
- AI21's own pages disagree on the trial window: one says 7 days, another says three months. Check what your account shows at sign-up
Who qualifies
- New AI21 Studio accounts only
- No credit card required to start
- After the trial is used up or expires, valid billing info is required to continue
- Larger needs route to a Custom Plan (volume discounts, private hosting, dedicated support) via sales
Community Insights
AI21 is respected more as a serious research lab (the hybrid Mamba-Transformer Jamba, long context, open weights on Hugging Face) than as a go-to consumer API, and developers often mention it in lists of inference providers rather than as a default choice. Practitioners note Jamba’s standout trait is long-context handling, and some position AI21 as a fit for task-specific and enterprise business-data use cases. Late-2025 chatter centered on a possible Nvidia acquisition, which signals the lab is seen as a credible target.
Best Practices (from community tips)
- Use the trial to validate Jamba’s long-context behavior specifically. That is its differentiator, not general chat quality.
- Start on Jamba Mini for cheap iteration ($0.20 / $0.40 per 1M); reserve Jamba Large for tasks that genuinely need the bigger model.
- Spend the $10 deliberately and confirm whether your account shows a 7-day or 3-month window before planning a long evaluation.
- Wire up billing before the trial lapses to avoid an interruption, even though no card is needed up front.
- For offline experiments, pull the Jamba open weights from Hugging Face instead of burning trial credits.
- If usage will scale, engage sales early for the Custom Plan instead of staying on pay-as-you-go.