Fable 5 vs Gemini 3.5: Cross-Vendor, Honestly Scoped
| Spec | Claude Fable 5 | Gemini 3.5 · Google |
|---|---|---|
| Tier | Mythos-class (above Opus) | Frontier (Google) |
| Availability (general) | Suspended (export-control directive) ↗ | Available |
| Released | June 9, 2026 ↗ | — |
| Context window | 1M tokens | Not tracked here Out of scope; see Google docs. |
| Max output | Up to 128k tokens | — |
| Input price (per M tokens) | $10 / M (after intro window) | — |
| Output price (per M tokens) | $50 / M (after intro window) | — |
| Data retention | 30 days | — |
| Zero-data-retention (ZDR) | No ZDR | — |
| Covered Model | Yes — Covered Model | — |
| Safeguards | Classifiers for cyber, bio/chem, distillation; reroute to Opus 4.8 | — |
| How to access | Claude API, AWS Bedrock, Google Cloud, Microsoft Foundry (when not suspended) | — |
The Anthropic side is precise
Fable 5 is the safeguarded public edition of the June 9, 2026 Mythos-class release: 1M-token context, up to 128k output, $10/$50 per million after intro, 30-day retention, and Covered Model status. It applies classifiers that can reroute a small share of flagged sessions to Opus 4.8, and its access is currently suspended under an export-control directive.
The Google side is not ours to specify
Gemini 3.5 is Google's model. We include it for orientation only. Its context window, modalities, and pricing are out of scope on this reference, and any Gemini spec values shown in the auto table should be read as illustrative. Google's own model documentation is the authoritative source.
Choosing well
Decide on multimodal needs, regional availability, integration with your stack (Google Cloud vs Anthropic-on-Bedrock), and your own benchmarks. Don't lean on viral leaderboards: Fable 5 figures are unofficial pending Anthropic's system card, and Gemini figures should come straight from Google.
Frequently asked questions
Is Fable 5 or Gemini 3.5 the better model?
There's no authoritative cross-vendor answer here. Fable 5 is a capable Mythos-class model but currently suspended; Gemini 3.5's details belong to Google. Evaluate both on your own tasks.
Does this page list Gemini 3.5 pricing?
Not authoritatively. Google's pricing is out of scope; consult Google's official pages for current Gemini 3.5 rates.
Can I use Fable 5 today to compare them myself?
Fable 5 access is currently suspended, so a live comparison may not be possible right now. Watch the status page for restoration.
Sources & further reading
- Anthropic pricingOfficialanthropic.com
- anthropicmythos.aiFlagshipanthropicmythos.ai
Facts on this page link to their source. Quotes are kept under 15 words and attributed; figures labelled unofficial are third-party until Anthropic publishes system-card numbers.