Claude Fable 5 vs Llama 3.1 405B
At a Glance
| Compare | Claude Fable 5Anthropic |  Llama 3.1 405BMeta |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #2 of 4695.6 score · 3/3 sources · complete | UnrankedNot in the 46-model eligible cohort |
| CostLower is better · Published-token output estimate | #44 of 44$1.01 per LiveBench case | UnrankedNot in the 44-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.5 | #29 of 3847.8 score · 3/3 sources · complete | UnrankedNot in the 38-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $10.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $50.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Context windowMaximum documented tokens | 1,000K | 131K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 28, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Claude Fable 5 | Llama-3.1-405B |
|---|---|---|
| Developer | Anthropic | Meta |
| Family | Claude 5 | Llama 3 1 405b |
| Model | Claude Fable 5 | Llama-3.1-405B |
| Version | Claude Fable 5 | Llama-3.1-405B |
| Lifecycle | active | active |
| Released | 2026-06-09 | 2024-07-23 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,000K | 131K |
| Total parameters | Unknown | 405.9B |
| Active parameters | Unknown | Unknown |
| License | Unknown | llama3.1 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Anthropic (Standard), Deepinfra (Standard), Openrouter (Standard) | Together Ai (Standard) |
| Capabilities | chat, generation, reasoning, tools | generation |
Claude Fable 5 Capabilities
Llama 3.1 405B Capabilities
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Primary Evidence
Sources and Freshness
Questions
Claude Fable 5 vs Llama 3.1 405B FAQs
Is Claude Fable 5 or Llama 3.1 405B better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Fable 5 and Llama 3.1 405B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Fable 5 or Llama 3.1 405B?+
Only Claude Fable 5 has a directly sourced input price: $10.00 per million tokens. Only Claude Fable 5 has a directly sourced output price: $50.00 per million tokens.
Which has a larger context window, Claude Fable 5 or Llama 3.1 405B?+
Claude Fable 5 has the larger sourced context window. Claude Fable 5 supports 1,000K and Llama 3.1 405B supports 131K.
Which performs better in benchmarks, Claude Fable 5 or Llama 3.1 405B?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Fable 5 or Llama 3.1 405B be self-hosted?+
Llama 3.1 405B is the only model in this pair currently marked as self-hostable. Claude Fable 5 is not marked open weight; Llama 3.1 405B is open weight.
Can Claude Fable 5 and Llama 3.1 405B understand images?+
Claude Fable 5 is documented with image input; Llama 3.1 405B is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Fable 5 or Llama 3.1 405B?+
Neither has a larger sourced maximum output. Claude Fable 5 is 128K and Llama 3.1 405B is —.
Do Claude Fable 5 and Llama 3.1 405B support reasoning and tool use?+
Claude Fable 5: reasoning, tool calling, and image input. Llama 3.1 405B: none of these features are definitively sourced. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Fable 5 or Llama 3.1 405B?+
Claude Fable 5 has 3 sourced provider routes; Llama 3.1 405B has 1, so Claude Fable 5 has broader tracked availability.
Which offers better value, Claude Fable 5 or Llama 3.1 405B?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.