BENCHMARK REGISTRY
Public Artificial Intelligence Benchmark Records Database

GPT-5.5 on SWE-bench Pro

BENCHMARK RECORD: BR-00155-001

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Canonical URL: https://www.benchmarkregistry.org/records/BR-00155-001

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-00155-001
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Superseded By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
GPT-5.5
Model Identifier
OPNAI-55
Organization
OpenAI
Model Family
GPT
Model Number
55
Tier
Unknown
Model Snapshot
Unknown
Snapshot Label
Unknown
Provider Model Identifier
Unknown
Snapshot Date
Unknown

Benchmark

Benchmark Family
SWE-bench
Benchmark Version or Variant
Pro
Benchmark Version Reference
swe-bench/pro
Benchmark Organization
Princeton University
Benchmark Status
ACTIVE

Result

Metric
Resolved
Score
58.6
Numeric Score
58.6
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
UNKNOWN
Evaluator
Unknown
Evaluator Type
UNKNOWN

Provenance

DateEventSourceDetails
2026-07-12T17:19:47.672ZRecord created manuallySystem Card: Claude Opus 4.8—

Record Status

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