Retrieval, embeddings and long context / Benchmark leaderboard

LongBench v2

Long-document comprehension and reasoning across realistic scenarios.

No published company result yet.

This benchmark is in the research directory. Its task package, adapter and grading protocol need qualification before a hosted run can be offered.

Arrange an evaluation for your company →

What this benchmark measures

Metrics

Multiple-choice accuracy across length and difficulty slices.

Execution requirements

Long-context model or declared retrieval-assisted setting.

Scope and limitations

Report retrieval use and context truncation; avoid comparing different input access conditions.

Evaluation availability

Catalog entry. Request a managed evaluation to qualify your agent interface and the benchmark’s native grading requirements.

Sources and company fit

Companies whose products may fit

Research recommendations based on product capabilities. These companies have not necessarily run this benchmark or integrated with Blobfish.

Compatibility notes for each company

Anthropic: Capability-aligned; adapter/access to qualify

Cohere: Direct component API + selected system adapters

Glean: Capability-aligned; adapter/access to qualify

Google DeepMind: Capability-aligned; adapter/access to qualify

Hebbia: Capability-aligned; adapter/access to qualify

OpenAI: Capability-aligned; adapter/access to qualify

Writer: Capability-aligned; adapter/access to qualify