Update surface
This is the weekly-extensible surface required for the Claude benchmark network. Future updates should add new model launches, benchmark revisions, score changes, and methodology corrections here.
Citable baseline
Dated facts with primary-source links where the underlying source is available.
2026-07-06
Added client-side model comparison, benchmark decoding, and API cost comparison tools using dated source records for prices, context windows, and benchmark claims.
Primary source: Anthropic Claude Platform Docs2026-07-06
Created the source-first benchmark desk around current Claude Fable 5, Opus 4.8, Sonnet 5, GPT-5.5, GPT-5.6 preview, SWE-Bench Pro, SWE-Bench Verified, and Terminal-Bench 2.0 sources.
Primary source: Anthropic Claude Platform Docs2026-06-30
Anthropic introduced Sonnet 5 with lower-cost agentic positioning and introductory pricing through August 31, 2026.
Primary source: Anthropic2026-06-26
OpenAI previewed GPT-5.6 Sol, Terra, and Luna. The Help Center states ChatGPT is not included during preview.
Primary source: OpenAI Help Center2026-05-28
Anthropic released Opus 4.8 with effort control, fast mode, 1M context, and agentic coding positioning.
Primary source: AnthropicKeep reading
Internal links are selected to keep benchmark, tool, and methodology context together.
Report
Use SWE-Bench Pro for contamination-aware software repair, Terminal-Bench for command-line agent behavior, and provider launch tables only when you preserve the harness and effort settings.
Tool
Filter Claude, GPT, and benchmark-reference models by provider, access, price, context window, and published coding benchmark evidence.
Source
Inspect the Anthropic, OpenAI, benchmark-owner, and research sources behind the baseline.
About
Read the editorial scope, independence note, corrections policy, and Claude Network boundaries.