Claude Opus 4.8 on MCP Atlas

BENCHMARK RECORD: BR-002O48-018

Canonical URL: https://www.benchmarkregistry.org/records/BR-002O48-018

Benchmark scores may depend on benchmark version, evaluation configuration, model snapshot, and evaluator. Records sharing a benchmark name are not necessarily directly comparable.

Record

Record Identifier

BR-002O48-018

Record Status

ACTIVE

Created At

2026-07-12T17:19:47.672Z

Updated At

2026-07-12T17:19:47.672Z

Superseded By

Not applicable

Model

Official Model Name

Claude Opus 4.8

Model Identifier

ANTHR-O48

Organization

Anthropic

Model Family

Claude

Model Number

48

Tier

O

Model Snapshot

Unknown

Snapshot Label

Unknown

Provider Model Identifier

Unknown

Snapshot Date

Unknown

Benchmark

Benchmark Family

MCP Atlas

Benchmark Version or Variant

Unknown

Benchmark Version Reference

mcp-atlas/default

Benchmark Organization

Scale AI

Benchmark Status

ACTIVE

Result

Metric

Overall

Score

82.2

Numeric Score

82.2

Evaluation Date

Unknown

Reported Date

2026-05-28

Evaluation Context

Configuration Reference

Unspecified

Shots

Unknown

Reasoning Mode

Unknown

Reasoning Effort

Unknown

Pass Count

Unknown

Agent Scaffold

Unknown

Evaluation Harness

Unknown

Temperature

Unknown

Top P

Unknown

Max Output Tokens

Unknown

System Prompt Description

Unknown

Additional Configuration

None reported

Source and Reporting

Primary Source

System Card: Claude Opus 4.8 ↗

Source Type

SYSTEM_CARD

Publisher

Anthropic

Source Published Date

2026-05-28

Source Accessed At

2026-07-12T17:16:28.964Z

Report Type

PROVIDER

Evaluator

Anthropic

Evaluator Type

MODEL_PROVIDER

Provenance

Record Status

This record is ACTIVE. Registry identifiers remain reserved when record status changes.