Name: Relay
Author: Tensorpunk Labs

Question 1

What is Relay?

Accepted Answer

Relay is an advanced agentic memory system and context flow protocol for human-agent teams. It provides persistent, shared context across AI sessions so that every session starts oriented and every handoff is seamless. Built by Tensorpunk Labs.

Question 2

What is Relay's score on LongMemEval?

Accepted Answer

Relay achieves 100% recall@5 on LongMemEval Oracle (500 questions, perfect retrieval), 97.0% recall@5 on the S-variant (50 sessions per query), and 92.2% end-to-end QA accuracy using Claude Opus 4.6 for generation and GPT-4o as judge. These are the highest published retrieval scores on LongMemEval as of April 2026.

Question 3

How does Relay compare to MemPalace?

Accepted Answer

Relay achieves 100% recall@5 on LongMemEval Oracle compared to MemPalace's 96.6% (which is disputed — see GitHub Issue #29). Relay also runs the full end-to-end QA evaluation which MemPalace has never published. Relay focuses on multi-agent context flow across teams while MemPalace is a single-user local memory system.

Question 4

How does Relay compare to OMEGA?

Accepted Answer

Relay leads on retrieval (100% Oracle, 97% S-variant — OMEGA does not publish retrieval scores). OMEGA reports 95.4% QA on the S-variant using self-graded GPT-4.1. Relay's 93.2% multi-session QA score beats OMEGA's 83% on that category. Relay is designed for multi-agent team context flow while OMEGA is a local-first single-machine memory system.

Question 5

What technology does Relay use for search?

Accepted Answer

Relay uses a three-stage retrieval pipeline: (1) Hybrid search combining BM25 full-text search with semantic vector search via Reciprocal Rank Fusion (k=60), (2) topic and artifact type pre-filtering, and (3) cross-encoder reranking with Xenova/bge-reranker-base. Embeddings are generated locally using Xenova/all-MiniLM-L6-v2 (384 dimensions) with zero API cost.

Question 6

Is Relay open source?

Accepted Answer

Relay is source-available under the Business Source License 1.1 (BSL 1.1) with automatic conversion to Apache 2.0 after 3 years. The source code, benchmark scripts, and evaluation results are publicly available.

Question 7

Who makes Relay?

Accepted Answer

Relay is built by Tensorpunk Labs (tensorpunklabs.com). Contact: contact@tensorpunk.com.

RELAY