Rumored codename for an Anthropic creative-writing-tuned variant of Opus. Unconfirmed — tracked here so the page is live if/when it ships.
Rumored codename for an Anthropic creative-writing-tuned variant of Opus. Unconfirmed — tracked here so the page is live if/when it ships.
Why it matters: Leaks and changelog scrapers have surfaced the "Mythos" codename in internal preview channels.
Expected pricing: Unknown
Current best Claude for long-form creative writing — Mythos is expected to be a fine-tune of this base.
We'll auto-switch your API calls to Claude Opus Mythos the moment it launches — no code changes required.
curl -X POST https://api.skillboss.co/v1/run \
-H "Authorization: Bearer $SKILLBOSS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"skill_id": "anthropic/claude-4-5-opus",
"input": {
"prompt": "Say hello from Claude Opus Mythos — routed via SkillBoss"
}
}'Create a free SkillBoss account and we'll email you the moment routing is live — and automatically upgrade your API calls.
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