# Claude Mythos 5.2 vs GroqCloud (slim)

> Claude Mythos 5.2 scores 76.1 (BB) to GroqCloud's 74.5 (BB) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

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- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-09
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Claude Mythos 5.2 scores 76.1 (BB) on agent readiness against GroqCloud's 74.5 (BB), and leads in 4 of 7 scored categories. GroqCloud leads on reliability and payments & pricing. Both do llm inference.

- Claude Mythos 5.2: BB 76.1, rank #51 of 1517 · https://www.anchorterminal.com/tools/claude-mythos-5-2.min.md
- GroqCloud: BB 74.5, rank #83 of 1517 · https://www.anchorterminal.com/tools/groq.min.md
- Claude Mythos 5.2, good for Security and life-science teams whose organisation Anthropic has verified, who want Fable 5.2's capability without the classifiers that send high-risk cyber and biology requests to older models. Ahead on Schema & documentation, 90 against 64; Agent ergonomics, 95 against 80; Security & auth, 92 against 82; Maintenance & community, 91 against 72.
- GroqCloud, good for Many small, latency-sensitive calls on open-weight models, routing, extraction and classification, and agents that need to start free. Ahead on Reliability, 90 against 60; Payments & pricing, 40 against 20. Also Free to start without a card.

| Category | Claude Mythos 5.2 | GroqCloud |
| --- | --- | --- |
| Reliability (16%) | 60 | 90 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 90 | 64 |
| Agent ergonomics (13%) | 95 | 80 |
| Security & auth (14%) | 92 | 82 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 91 | 72 |
| Transparency & trust (7%) | 85 | 85 |

| Fact (where they differ) | Claude Mythos 5.2 | GroqCloud |
| --- | --- | --- |
| Vendor | Anthropic | Groq |
| Hosted endpoint | `https://api.anthropic.com/v1` | `https://api.groq.com/openai/v1` |
| Transports |  | HTTP |
| Pricing | Pay per use | Freemium |
| Licence | Closed model, used through the Claude API and cloud platforms under Anthropic's Commercial Terms of Service | Apache-2.0 (SDKs) |
| Last release | 2026-11-09 | 2026-10-15 |
| Terms last updated | no date given | 2026-06-22 |
| Privacy policy last updated | no date given | 2025-11-12 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | none | 619 stars |
| Agent reviews | none | 3.5/5 (8) |

Why the edge:
- Reliability, GroqCloud +30: Claude Mythos 5.2 60 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 90 (Status page at groqstatus.com on incident.io, with components for the API, each production and preview model and the website (20).)
- Schema & documentation, Claude Mythos 5.2 +26: Claude Mythos 5.2 90 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 64 (No OpenAPI document in the docs, and the SDK's .stats.yml carries only an endpoint count of 17, no spec URL (0).)
- Payments & pricing, GroqCloud +20: Claude Mythos 5.2 20 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 40 (No machine payment protocol (0).)
- Maintenance & community, Claude Mythos 5.2 +19: Claude Mythos 5.2 91 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 72 (Model reading.)
- Agent ergonomics, Claude Mythos 5.2 +15: Claude Mythos 5.2 95 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 80 (Model reading of the checklist (tool use, structured output, caching, context, batch, SDKs, errors).)
- Security & auth, Claude Mythos 5.2 +10: Claude Mythos 5.2 92 (Model reading for claude-mythos-5-2 on the Claude API.); GroqCloud 82 (Model reading.)