Compare · ModelsLive · 2 picked · head to head

Claude Mythos Preview vs Kimi K2 Thinking

Side by side · benchmarks, pricing, and signals you can act on.

Winner summary

Claude Mythos Preview wins 2 of 2 shared benchmarks. Leads in knowledge · coding.

Category leads
knowledge·Claude Mythos Previewcoding·Claude Mythos Preview
Hype vs Reality
Claude Mythos Preview
#4 by perf·#2 by attention
DESERVED
Kimi K2 Thinking
#79 by perf·no signal
QUIET
Best value
Claude Mythos Preview
no price
Kimi K2 Thinking
34.4 pts/$
$1.55/M
Vendor risk
Anthropic logo
Anthropic
$380.0B·Tier 1
Medium risk
moonshotai logo
moonshotai
private · undisclosed
Unknown
Head to head
Claude Mythos PreviewKimi K2 Thinking
GPQA diamond
Claude Mythos Preview leads by +15.5
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude Mythos Preview
94.5
Kimi K2 Thinking
79.0
Terminal Bench
Claude Mythos Preview leads by +46.3
Terminal-Bench 2.0 · evaluates AI agents on real terminal-based coding tasks · writing scripts, debugging, running tests, and managing projects entirely through command-line interaction. Tests both code quality and terminal fluency. Claude Opus 4.7 scores 69.4%, demonstrating significant agentic terminal competence.
Claude Mythos Preview
82.0
Kimi K2 Thinking
35.7
Full benchmark table
BenchmarkClaude Mythos PreviewKimi K2 Thinking
GPQA diamond
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
94.579.0
Terminal Bench
Terminal-Bench 2.0 · evaluates AI agents on real terminal-based coding tasks · writing scripts, debugging, running tests, and managing projects entirely through command-line interaction. Tests both code quality and terminal fluency. Claude Opus 4.7 scores 69.4%, demonstrating significant agentic terminal competence.
82.035.7
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
Anthropic logoClaude Mythos Preview1.0M tokens (~500 books)
moonshotai logoKimi K2 Thinking$0.60$2.50262K tokens (~131 books)$10.75