Get in touch · Concave AI

Let's look at your model data together

Tell us about your AI model and annotation needs. We respond within one working day with a specific plan — or a free diagnostic on 50 of your outputs.

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Free model diagnosis
50 outputs evaluated. Sycophancy susceptibility score and hallucination rate back in 5 working days. No cost, no commitment.
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Annotation project pilot
A small scoped pilot — 200 RLHF pairs or 500 NLP documents — so you can verify our quality before committing.
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Continuous evaluation retainer
Standing expert team evaluating live model outputs weekly. Monthly retraining batch included. For enterprise GenAI in production.
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Custom pipeline design
We design your full RLAIF + human QA annotation pipeline before a single task is run.
DPDP 2023 GDPR Ready AWS Encrypted NDA Every Project Published κ Scores Vendor Neutral Bengaluru, India
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Fill in the details below and we will respond within one working day. All information is kept confidential under our standard NDA.

Enquiry received
Our ML team will review your details and respond within one working day. If you selected the free audit, we will reach out to arrange a secure data transfer.
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We respond within one working day.
All enquiries covered by our NDA.

Response within 1 working day Free 50-output diagnosis NDA before any data exchange DPDP Act 2023 compliant Published kappa scores ML-engineer led quality Bengaluru, India 8 Indic languages Response within 1 working day Free 50-output diagnosis NDA before any data exchange DPDP Act 2023 compliant Published kappa scores ML-engineer led quality Bengaluru, India 8 Indic languages
What Happens Next

From enquiry to first delivery in four steps

Here is exactly what happens after you submit this form — no black boxes, no sales runaround.

1
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Within 1 working day
We review your enquiry and respond
Our ML engineer reviews your project description personally and replies with specific questions, a rough scope estimate, and — if you selected the free audit — instructions for sending us 50 model outputs securely.
2
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Days 2–4
Scoping call + Scope of Work
A 30-minute call to clarify your requirements — task type, data format, volume, quality threshold, delivery format, and timeline. We then produce a detailed Scope of Work document with exact pricing before anything begins. No surprises.
3
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Days 4–6
NDA signed + data transfer
Mutual NDA executed before any data moves. Your data arrives in an encrypted, isolated S3 bucket — named access only. We set up Label Studio, write your project-specific annotation guidelines, and run annotator calibration. Cohen's kappa ≥ 0.70 before annotation begins.
4
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Project completion + Day 14
Delivery with QA report + data card
Dataset delivered with a full QA report (kappa scores, gold standard accuracy, batch error log) and a data card. Two weeks later we follow up for your model benchmark result. If the data does not improve your model, we investigate and re-deliver at no cost.
FAQ

Questions before reaching out?

The most common questions we receive before a first conversation. If yours is not here, email us at hello@concave.ai

What does the free audit actually involve? +
You send us 50 model outputs or RLHF preference pairs — securely, via a signed URL to an encrypted S3 bucket. We evaluate them for sycophancy susceptibility and/or hallucination rate depending on what you need. You receive a 1-page findings report within 5 working days. No cost. No sales call required beforehand. No obligation to engage further. If the finding is not interesting, you have lost nothing. If it is, we discuss next steps.
What is the minimum project size? +
For RLHF preference data: 500 pairs minimum. For NLP annotation: 300 documents minimum. For image annotation: 500 images minimum. For evaluation audits (sycophancy, hallucination, red-teaming): these are fixed-scope projects with no minimum volume requirement — we scope them based on your model and risk profile. We do not have a minimum spend threshold.
How do you handle data confidentiality? +
A mutual NDA is signed before any data exchange. Your data is stored in an isolated, encrypted S3 bucket — one bucket per client, never shared. Access is restricted to named individuals listed in your project data card. Every annotator signs an individual confidentiality agreement before they see any task. We are DPDP Act 2023 compliant for Indian data, GDPR-ready for European data, and HIPAA-aligned for healthcare data. After delivery, data is deleted from our systems on your request.
How long does a typical project take? +
After the Scope of Work is signed: scoping and guidelines take 3–5 days. Calibration takes 2–3 days. Annotation time depends on volume — typically 1,000 RLHF pairs take 5–8 working days of annotation, 5,000 NLP documents take 7–10 days. QA and delivery adds 2–3 days. Total from signed SOW to delivery: typically 2–4 weeks depending on volume and complexity. We include a project timeline in every SOW.
What quality guarantee do you offer? +
We guarantee a Cohen's kappa inter-annotator agreement score of ≥ 0.70 on every delivery. If a batch falls below this threshold, we recalibrate and re-annotate the affected tasks at no cost. Every delivery includes a QA report with the actual kappa score, gold standard pass rates, and batch error log — so you can verify the quality claim yourself rather than taking our word for it. Two weeks post-delivery, we follow up for your model benchmark result. If the data did not produce the expected improvement, we investigate and re-deliver.
Do you work with Indian AI startups or only large enterprises? +
Both — and our pricing is designed to work for both. Indian AI startups at Seed and Series A stage are our core ICP. We have project-based pricing starting at ₹3L that works for teams that need 500 RLHF pairs on a startup budget. We also work with MNC India AI labs and enterprise teams deploying GenAI products, where projects are larger and often convert to monthly retainers. The free audit is available to everyone regardless of company size.
Can you annotate in Indian languages? +
Yes — this is one of our core capabilities. We maintain native-speaker annotator pools for Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, Marathi, and Gujarati. For RLHF annotation in Indian languages, our annotators are not just native speakers but also culturally aware of communication norms specific to each language — which affects how sycophancy, politeness, and directness are interpreted in preference data. We also provide cultural context notes in guidelines for cross-language annotation consistency.
Other Ways to Reach Us

Prefer a more direct conversation?

Not ready to fill a form? Reach out directly through any of the channels below.

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Email directly
For general enquiries, data security questions, or if you want to share a large data sample before committing to a form submission.
hello@concave.ai →
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LinkedIn
Connect with our founder directly on LinkedIn for a technical peer conversation about your annotation challenge — no sales pitch, just a genuine ML discussion.
Connect on LinkedIn →
Concave AI · Bengaluru, India
DPDP Act 2023 Compliant
GDPR Ready
AWS Encrypted Storage
NDA on Every Project
8 Indic Languages
Vendor Neutral · Founder-Owned