1. Vespa
Vespa.ai · Trondheim · Cloud platforms & infrastructure · 4.3/5
AI search platform for vector, text and structured retrieval, recommendations and personalisation at scale.
Free plan
Free plan available
Cloud platforms & infrastructure · Alternatives
Best Letta alternatives in India (2027)
Letta is a cloud platforms & infrastructure product from Letta, San Francisco, priced at Free plan with a free plan. We compared 20 alternatives on published price, free plan, platforms and made-in-India support: 18 have a free plan, 2 are built in India.
Quick answer
The closest alternatives to Letta are Vespa (Free plan), Inferless (Free plan), Epsilla (Free plan), LangWatch (Free plan) and Tonic.ai (Free plan). Vespa is the top-ranked option with a free plan.
Why businesses look for a Letta alternative
Indian support and GST
Letta is built in United States. 2 alternatives are made in India, where GST, TDS and UPI are usually handled natively and support runs on IST.
Letta alternatives compared
Ranked by how closely each product matches Letta's category, pricing model, platforms and business size, then by rating. Prices exclude GST.
| # | Software | Starting price | Free plan | Platforms | Made in India | Rating | Compare |
|---|---|---|---|---|---|---|---|
| — | Letta (current) | Free plan | Yes | Web | No | 4.2/5 | — |
| 1 | Vespa | Free plan | Yes | Web | No | 4.3/5 | |
| 2 |  Inferless | Free plan | Yes | Web | Yes | 4.5/5 | |
| 3 |  Epsilla | Free plan | Yes | Web | No | 4.3/5 | |
| 4 |  LangWatch | Free plan | Yes | Web | No | 4.3/5 | |
| 5 |  Tonic.ai | Free plan | Yes | Web | No | 4.3/5 | |
| 6 |  Cerebras | Free plan | Yes | Web | No | 4.3/5 | |
| 7 |  Deepchecks | Free plan | Yes | Web | No | 4.2/5 | |
| 8 |  Mem0 | Free plan | Yes | Web | No | 4.2/5 | |
| 9 |  Maxim AI | Free plan | Yes | Web | No | 4.2/5 | |
| 10 |  Vast.ai | Paid plans | No | Web | No | 3.9/5 | |
| 11 |  Confident AI | Free plan | Yes | Web | No | 4.3/5 | |
| 12 |  Kili Technology | Free plan | Yes | Web | No | 4.3/5 | |
| 13 |  Rancher | Free plan | Yes | Web | No | 4.5/5 | |
| 14 |  Traceloop | Free plan | Yes | Web | No | 4.2/5 | |
| 15 |  SambaNova | On request | No | Web | No | 3.9/5 | |
| 16 |  ClearML | Free plan | Yes | Web | No | 4.2/5 | |
| 17 |  Paperspace | Free plan | Yes | Web | No | 4.2/5 | |
| 18 |  Cloudflare Workers | Free plan | Yes | Web | No | 4.4/5 | |
| 19 |  Back4App | Free plan | Yes | Web | No | 4.4/5 | |
| 20 |  ImageKit | Free plan | Yes | Web | Yes | 4.5/5 |
Top 10 Letta alternatives in detail
2. Inferless
Inferless · Bengaluru · Cloud platforms & infrastructure · 4.5/5
Serverless GPU inference platform for deploying machine learning models with pay-per-use pricing.
Free plan
Free plan available
Compared with Letta
- Built in India (Bengaluru)
3. Epsilla
Epsilla · Jersey City · Cloud platforms & infrastructure · 4.3/5
AI agent-as-a-service platform for building, deploying and managing enterprise AI agents without coding.
Free plan
Free plan available
4. LangWatch
LangWatch · Amsterdam · Cloud platforms & infrastructure · 4.3/5
AI agent testing and evaluation platform with simulations, evals, observability and governance.
Free plan
Free plan available
5. Tonic.ai
Tonic AI, Inc. · San Francisco · Cloud platforms & infrastructure · 4.3/5
Synthetic and de-identified test data platform for software and AI development environments.
Free plan
Free plan available
6. Cerebras
Cerebras Systems · Sunnyvale · Cloud platforms & infrastructure · 4.3/5
AI inference service and wafer-scale systems for running large language models.
Free plan
Free plan available
7. Deepchecks
Deepchecks · Ramat Gan · Cloud platforms & infrastructure · 4.2/5
LLM testing, observability and monitoring platform for AI systems running in production.
Free plan
Free plan available
8. Mem0
Mem0 · San Francisco · Cloud platforms & infrastructure · 4.2/5
Memory layer that lets AI agents and apps retain context from past user interactions.
Free plan
Free plan available
9. Maxim AI
H3 Labs Inc · Mountain View · Cloud platforms & infrastructure · 4.2/5
AI gateway and evaluation platform providing routing, guardrails and observability for LLM and agent traffic.
Free plan
Free plan available
10. Vast.ai
Vast.ai · San Francisco · Cloud platforms & infrastructure · 3.9/5
Marketplace for renting cloud GPUs for AI, machine learning and rendering workloads.
Paid plans
Free trial
Compared with Letta
- No free plan, unlike Letta
Letta alternatives by what you need
Free Letta alternatives
Indian alternatives to Letta
How to choose a Letta alternative
- Start on a simpler provider unless you need specific managed services.
- Use Indian regions for latency and residency.
- Set budgets and alerts — cloud bills grow silently.
Letta alternatives — FAQs
What is the best alternative to Letta in 2027?+
The closest matches to Letta on App Advisor are Vespa (Free plan), Inferless (Free plan), Epsilla (Free plan). They are ranked by how closely their category, pricing model, platforms and target business size match Letta, then by rating. The best choice depends on your team size and budget.
Is there a free alternative to Letta?+
Yes. 18 of the 20 alternatives listed have a free plan or are free: Vespa (Free plan), Inferless (Free plan), Epsilla (Free plan). Free plans usually cap users, records or transactions, so check the limits against your monthly volume.
Is there an Indian alternative to Letta?+
Yes. 2 alternatives are built in India, including Inferless (Free plan), ImageKit (Free plan). Indian products usually handle GST, TDS and UPI natively and bill in rupees.
Letta vs Vespa: which is better?+
Vespa is the closest match to Letta in our catalogue. Compare them side by side before you book a demo.
How were these Letta alternatives chosen?+
Every product listed sits in cloud platforms & infrastructure or a category Letta also covers, and Letta's own products are excluded. Prices, free plans and platforms come from each vendor's official website. App Advisor does not sell any of this software.
Free shortlist
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Related alternatives
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