See how 73 companies
improve quality with AI

Context Windows brings together case studies on what companies are doing with AI, from across the web. We compare their results so you can prioritise the use cases that are actually working.

Get a free personalized overview of what's working with AI in your industry and your role.

You'll also get What's brewing in AI, the weekly newsletter behind Context Windows. Unsubscribe anytime.

Real-world implementations from

Shopee logoS
ShopeeMultilingual ecommerce model
NTT DATA logoN
NTT DATAAgent monitoring
NHS Digital logoN
NHS DigitalCall center scripting
Bouygues Telecom logoB
Bouygues TelecomCustomer support
Twilio logoT
TwilioDevelopment automation
Shopee logoS
ShopeeMultilingual ecommerce model
NTT DATA logoN
NTT DATAAgent monitoring
NHS Digital logoN
NHS DigitalCall center scripting
Bouygues Telecom logoB
Bouygues TelecomCustomer support
Twilio logoT
TwilioDevelopment automation
Try:,,
Showing 9 of 73 case studies
Bubble logoB

Bubble

Software & Platforms|SMB

Agent evaluation

AgenticL2

Repeated prompts overfitted the agent, hiding regressions. Evals score for equivalence — the same app can be built in multiple valid ways.

1.5xAccuracy Improvement
via braintrustdata.com
Published 5 days ago
Numan logoN

Numan

Healthcare Providers|SMB

Health coaching

AgenticL3

Aggregate scores hid when the coach veered into clinical territory. Adversarial simulations now block every boundary slip before it ships.

via blog.langchain.com
Published 6 days ago
Prosper AI logoP

Prosper AI

Healthcare Providers|SMB

Call transcription

AgenticL4

Latency drift sent payer calls back to humans. Deepgram Nova-3 keeps voice agents on the line—claim numbers and policy codes captured clean.

98.5%ID Verification Rate
via deepgram.com
Published Sep 11, 2026
Document360 logoD

Document360

Software & Platforms|SMB

Knowledge base search

AgenticL2

Slight rephrasing produced different answers, eroding trust. Hybrid search and AI reranking now pull the exact context, consistently.

99%Retrieval Accuracy
via mongodb.com
Published Sep 4, 2026
Shopee logoS

Shopee

Retail|Enterprise

Multilingual ecommerce model

AgenticL2

General-purpose LLMs scored below 52% on multilingual ecommerce tasks. Shopee's own 245B-parameter Compass now handles 340B tokens monthly.

90%Cost Reduction
via nvidia.com
Published Aug 11, 2026
Pylon logoP

Pylon

Software & Platforms|SMB

Prompt evaluation

AgenticL2

Prompt iterations rubber-banded: each engineer's fix overcorrected the last. Evals are now a merge requirement—no eval, no commit.

10 minsActive Debugging Saved
via braintrustdata.com
Published Jul 31, 2026