Compare · ModelsLive · 2 picked · head to head
Claude Mythos Preview vs Claude Sonnet 4.6
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Mythos Preview wins on 2/2 benchmarks
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
Attention vs performance
Claude Mythos Preview
#2 by perf·#2 by attention
Claude Sonnet 4.6
#102 by perf·#18 by attention
Best value
Claude Sonnet 4.6
Claude Mythos Preview
—
no price
Claude Sonnet 4.6
5.3 pts/$
$9.00/M
Vendor risk
Who is behind the model
Anthropic
$380.0B·Tier 1
Anthropic
$380.0B·Tier 1
Head to head
2 benchmarks · 2 models
Claude Mythos PreviewClaude Sonnet 4.6
GPQA diamond
Claude Mythos Preview leads by +11.3
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
Claude Sonnet 4.6
83.2
SWE-Bench verified
Claude Mythos Preview leads by +18.7
Claude Mythos Preview
93.9
Claude Sonnet 4.6
75.2
Full benchmark table
| Benchmark | Claude Mythos Preview | Claude Sonnet 4.6 |
|---|---|---|
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 94.5 | 83.2 |
SWE-Bench verified | 93.9 | 75.2 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Claude Mythos Preview | — | — | 1.0M tokens (~500 books) | — |
| Claude Sonnet 4.6 | $3.00 | $15.00 | 1.0M tokens (~500 books) | $60.00 |
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