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Ekrem Sarı

Ekrem Sarı

AI Researcher
35 Articles
Stay up-to-date on B2B Tech

Ekrem is an AI Researcher and Data Scientist at AIMultiple. He designs and runs hands-on benchmarks for AI and LLM systems.

Professional Experience

At AIMultiple, Ekrem benchmarks end-to-end AI systems and builds the data workflows and dashboards used to track benchmark and product metrics. His benchmarks cover embedding and reranker models, vector and graph databases, inference engines, quantization, GPU concurrency and multi-GPU scaling, cloud GPU pricing and providers, text-to-SQL, and RAG and agentic RAG frameworks.

Before AIMultiple, he worked as a Data Scientist at Yandex, where he queried and analyzed large datasets with SQL to evaluate search and ranking quality against detailed guidelines.

Research Interest

Ekrem's work focuses on measuring how LLM and retrieval systems perform in practice. He designs the test harness, runs the workloads on real hardware, and compares models, frameworks, and infrastructure on accuracy, throughput, latency, cost, and scalability, across the stack from embedding models and vector databases to inference engines and GPU infrastructure. His MSc thesis automates systematic literature reviews with a RAG-based pipeline.

Education

Ekrem holds an MSc in Management Information Systems from Başkent University, where his thesis automated systematic literature reviews with a RAG-based pipeline, and is pursuing a second MSc in Data and Knowledge Engineering at Hacettepe University.

Latest Articles from Ekrem

AI
Benchmark
Aug 14

Benchmark of 40+ LLMs in Finance: Claude Fable 5 & GPT-5.6 Sol

We evaluated LLMs on 238 hard questions from the FinanceReasoning benchmark (Tang et al.).1 This subset targets the most challenging financial-reasoning tasks, assessing complex, multi-step quantitative reasoning involving financial concepts and formulas. Our evaluation employed a custom prompt design and scoring criteria of accuracy and token consumption. For a detailed explanation of how these metrics…

Enterprise Software
Benchmark
Aug 14

Email Archiving Software Benchmark

We provisioned a Microsoft 365 tenant, populated it with a 10,000-mail synthetic corpus and 1,700 attachments across 8 file-type subtypes, then benchmarked NinjaOne SaaS Archiver, Barracuda Cloud Archiving Service, Acronis Cyber Protect Cloud Email Archiving, and MailPiler on the same tenant against 10 dimensions covering ingestion, search, attachment recall, export, immutability, legal hold, audit, encryption,…

Cybersecurity
Open World Evaluation
Aug 14

Disaster Recovery Benchmark: Acronis vs Comet vs MSP360

We benchmarked Acronis Cyber Protect Cloud, Comet Backup, and MSP360 Managed Backup on disaster recovery. Each vendor imaged a live Windows Server 2022 and a live Ubuntu 24.04 server carrying the same deterministic workload, a web service, a 10,000-row database, and 50 files, then recovered the whole machine onto a separate server after a ransomware-style…

Data
Benchmark
Aug 14

Graph Database Benchmark: Neo4j vs FalkorDB vs Memgraph

We benchmarked Neo4j, FalkorDB, and Memgraph on a synthetic graph derived from 120,000 Amazon product reviews (381K nodes, 804K edges). We ran 12 query templates with 1,000 measurements each, tested ingestion at 6 batch sizes, sustained concurrent load for 60 seconds at up to 32 threads, and measured memory, cold start, mixed workload, and index…

AI
Benchmark
Aug 11

Agentic RAG Benchmark: Multi-Database Routing Across 36 LLMs

We benchmarked 36 large language models on cross-database routing. Each model receives a natural language question and 11 SQL databases described at paragraph level, then has to decide which database holds the answer before it writes any SQL. The 11 databases were drawn from 80 BIRD-SQL candidates by clustering their description embeddings, so the candidates…

Cybersecurity
Benchmark
Aug 4

DLP Software Benchmark

We benchmarked Acronis DeviceLock DLP and ManageEngine DLP Plus on identical Windows Server 2022 VMs with 28 scenarios: 23 data leak tests (including 12 adversarial evasion files), 3 agent security tests, and 2 tests under high CPU and memory consumption. For the other DLP products, Netwrix Endpoint Protector, Sophos Intercept X, Teramind DLP, and Trellix…

Data
Benchmark
Jul 30

Large-Scale Web Scraping: 7 Providers Benchmarked

We ran two benchmarks against live websites, from 5 to 5,000 concurrent requests. The first sent 260,000 requests through four web unblockers across the Tranco top 10,000 domains, plus a markdown extraction test on 10,000 URLs. The second fetched 65,000 product and search pages from each of five scraping providers across 100 e-commerce domains. Metrics…

AI
Open World Evaluation
Jul 23

Comparison of Top 6 Free Cloud GPU Services

The best free GPU tier is worth about $19 a month at rental rates, and eight platforms give a real GPU with no credit card. Six of them cap free usage by the month, and we priced those at the cheapest current on-demand rate for each GPU in our cloud GPU pricing data. Each bar…

AI
Benchmark
Jul 20

Vector Database Sizing and Selection Calculator

The practical question behind a self-hosted vector database for RAG is which engine fits a given server, and which one the workload rules out. The calculator below answers both, from our benchmark of seven self-hosted vector databases run at matched recall on identical embeddings. Five checkboxes at the top of the calculator name five common…

AI
Benchmark
Jul 18

Vector Database Benchmark: 7 Open-Source Engines for RAG

We benchmarked seven open-source, self-hosted vector databases as the retrieval layer of a RAG pipeline, each run one at a time on identical bge-m3 embeddings and real medical and technical queries, so the database index was the sole variable. The workload spanned MedRAG-50k, TechQA-28k, and a 2.25M-vector corpus across eight dimensions, from accuracy and retrieval…