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. | — | 236B |
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. | 1M | 128k |
| These models have no shared benchmark scores. | ||
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. | 95.5% | — |
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. | 88% | — |
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. | 88% | — |
BrowseCompWeb browsing — Can the AI browse the web and track down hard-to-find answers? Higher is better. | 88% | — |
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 64.5% | — |
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. | 85% | — |
| Overview | ||
| Company | Anthropic | DeepSeek |
| Release date | Jun 9 2026 | Sep 5 2024 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
Claude Mythos 5vsGPT-6.1 SolDeepSeek V2.5vsGPT-6.1 SolClaude Mythos 5vsGemini 4 ArgonDeepSeek V2.5vsGemini 4 ArgonClaude Mythos 5vsMuse Spark OpenDeepSeek V2.5vsMuse Spark OpenClaude Mythos 5vsGrok 4.7DeepSeek V2.5vsGrok 4.7Claude Mythos 5vsMistral Large 4DeepSeek V2.5vsMistral Large 4Claude Mythos 5vsKimi K3DeepSeek V2.5vsKimi K3Frequently asked questions
Claude Mythos 5 and DeepSeek V2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V2.5 shipped 642 days before Claude Mythos 5, so benchmark comparisons should account for the intervening progress.
Context windows are 1M (Claude Mythos 5) vs 128k (DeepSeek V2.5). Claude Mythos 5 is closed, while DeepSeek V2.5 is open weight.
Direct benchmark comparisons are unavailable — Claude Mythos 5 and DeepSeek V2.5 don't publish scores on any of the same benchmarks.