Compare AI models

Specifications
Parameters
—30B
Context window
1M—
API pricing
Input price
$5.00—
Output price
$25.00—
Cached input price
$0.50—
Cheapest input
$5.00Amazon Bedrock$0.30DeepInfra
Cheapest output
$25.00Amazon Bedrock$1.10Phala
Benchmarks
SWE-Bench Pro
79.2%51.2%
SWE-Bench Verified
96%76%
Humanity's Last Exam · no tools
56.3%22%
GDPval-AA v2
1861953
Overview
CompanyAnthropicMeta
Release dateJul 24 2026Aug 10 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Opus 5 leads Muse Glimmer on 4 of the 4 benchmarks they both report (SWE-Bench Pro, SWE-Bench Verified, Humanity's Last Exam, GDPval-AA v2). Only Claude Opus 5 has a verified first-party API price: $5.00 per million input tokens and $25.00 per million output tokens. No pay-as-you-go API rate is tracked for Muse Glimmer. Claude Opus 5 shipped 17 days before Muse Glimmer, so benchmark comparisons should account for the intervening progress.

Claude Opus 5 is closed, while Muse Glimmer is open weight.

On SWE-Bench Pro, Claude Opus 5 leads at 79.2% vs Muse Glimmer at 51.2%. On SWE-Bench Verified, Claude Opus 5 leads at 96% vs Muse Glimmer at 76%. On Humanity's Last Exam · no tools, Claude Opus 5 leads at 56.3% vs Muse Glimmer at 22%. On GDPval-AA v2, Claude Opus 5 leads at 1861 vs Muse Glimmer at 953.