Compare · ModelsLive · 2 picked · head to head
Claude Fable 5 vs Claude Mythos Preview
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Claude Mythos Preview wins on 1/1 benchmarks
Claude Mythos Preview wins 1 of 1 shared benchmarks. Leads in knowledge.
Category leads
knowledge·Claude Mythos Preview
Hype vs Reality
Attention vs performance
Claude Fable 5
#26 by perf·#11 by attention
Claude Mythos Preview
#4 by perf·no signal
Best value
Claude Fable 5
Claude Fable 5
2.3 pts/$
$30.00/M
Claude Mythos Preview
n/a
no price
Vendor risk
Who is behind the model
Anthropic
$965.0B·Tier 1
Anthropic
$965.0B·Tier 1
Head to head
1 benchmark · 2 models
Claude Fable 5Claude Mythos Preview
GPQA diamond
Claude Mythos Preview leads by +13.4
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Claude Fable 5
81.1
Claude Mythos Preview
94.5
Full benchmark table
| Benchmark | Claude Fable 5 | Claude Mythos Preview |
|---|---|---|
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 81.1 | 94.5 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $10.00 | $50.00 | 1.0M tokens (~500 books) | $200.00 | |
| — | — | 1.0M tokens (~500 books) | — |
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