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.
—35B
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.
1M256k
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.
—$0.375
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.
—$2.25
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.
—$0.011PrimeIntellect
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
—$0.104PrimeIntellect
—$7.40PrimeIntellect · fp8
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.
77.8%49.5%
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.
93.9%73.4%
SWE-Bench MultilingualMultilingual coding — Like SWE-Bench, but the coding problems span many programming languages, not just one. Tests how broadly the AI can code. Higher is better.
87.3%67.2%
Terminal-Bench 2.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? (Version 2.0 of the test.) Higher is better.
82%51.5%
Humanity's Last Exam · no toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better.
56.8%21.4%
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
94.5%86%
CharXiv ReasoningChart reasoning — Can the AI read and reason about complex charts and figures, not just text? Higher is better.
86.1%78%
Overview
CompanyAnthropicQwen
Release dateApr 7 2026Apr 16 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Mythos Preview leads Qwen3.6 on 7 of the 7 benchmarks they both report. Only Qwen3.6 has a verified first-party price for an available API: $0.375 per million input tokens and $2.25 per million output tokens. No currently available pay-as-you-go API rate is tracked for Claude Mythos Preview. Claude Mythos Preview shipped 9 days before Qwen3.6, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Mythos Preview) vs 256k (Qwen3.6). Claude Mythos Preview is closed, while Qwen3.6 is open weight.

On SWE-Bench Pro, Claude Mythos Preview leads at 77.8% vs Qwen3.6 at 49.5%. On SWE-Bench Verified, Claude Mythos Preview leads at 93.9% vs Qwen3.6 at 73.4%. On SWE-Bench Multilingual, Claude Mythos Preview leads at 87.3% vs Qwen3.6 at 67.2%. On Terminal-Bench 2.0, Claude Mythos Preview leads at 82% vs Qwen3.6 at 51.5%. On Humanity's Last Exam · no tools, Claude Mythos Preview leads at 56.8% vs Qwen3.6 at 21.4%. On GPQA Diamond, Claude Mythos Preview leads at 94.5% vs Qwen3.6 at 86%. On CharXiv Reasoning, Claude Mythos Preview leads at 86.1% vs Qwen3.6 at 78%.