Compare AI models

Specifications
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality.
—30B
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.
1M128k
API pricingUSD per 1M tokens · lower wins
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$2.00—
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
$10.00—
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
$0.20—
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page.
$2.00Amazon Bedrock$0.30DeepInfra
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$10.00Amazon Bedrock$1.20DeepInfra
$900Anthropic list price$120DeepInfra · bf16
Benchmarks
SWE-Bench ProAgentic coding — Can the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better.
63.2%51.2%
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better.
85.2%76%
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better.
80.4%51.7%
OSWorld-VerifiedAgentic computer use — Can the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better.
81.2%65.9%
GDPval-AA v2Knowledge work — economically valuable knowledge work (v2, re-based Elo)
1618953
Overview
CompanyAnthropicMeta
Release dateJun 30 2026Aug 10 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Sonnet 5 leads Muse Glimmer on 5 of the 5 benchmarks they both report. Only Claude Sonnet 5 has a verified first-party price for an available API: $2.00 per million input tokens and $10.00 per million output tokens. No currently available pay-as-you-go API rate is tracked for Muse Glimmer. Claude Sonnet 5 shipped 41 days before Muse Glimmer, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Sonnet 5) vs 128k (Muse Glimmer). Claude Sonnet 5 is closed, while Muse Glimmer is open weight.

On SWE-Bench Pro, Claude Sonnet 5 leads at 63.2% vs Muse Glimmer at 51.2%. On SWE-Bench Verified, Claude Sonnet 5 leads at 85.2% vs Muse Glimmer at 76%. On Terminal-Bench 2.1, Claude Sonnet 5 leads at 80.4% vs Muse Glimmer at 51.7%. On OSWorld-Verified, Claude Sonnet 5 leads at 81.2% vs Muse Glimmer at 65.9%. On GDPval-AA v2, Claude Sonnet 5 leads at 1618 vs Muse Glimmer at 953.