Claude Fable 5 vs Llama 3.1 8B

Pricing verdict: Claude Fable 5 vs Llama 3.1 8B: Llama 3.1 8B is cheaper for input-heavy usage ($0.18/M vs $10.00/M input tokens), while Claude Fable 5 is better for long-context tasks (1,000,000 tokens).

Direct answer: choose Llama 3.1 8B for lower token spend and choose Claude Fable 5 when your workload needs longer context.

Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.

Anthropic

Claude Fable 5

Meta (via Together AI)

Llama 3.1 8B

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Claude Fable 5 pricing page Llama 3.1 8B pricing page Anthropic provider overview Meta (via Together AI) provider overview

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

Claude Fable 5

Per Request:$0.035

Daily:$3.50

Monthly:$105.00

Yearly:$1,277.50

Llama 3.1 8B

Per Request:$0.000270

Daily:$0.027

Monthly:$0.81

Yearly:$9.855

Cost Differences

$0.03473

Per Request

$3.473

Daily

$104.19

Monthly

$1,267.645

Yearly

Llama 3.1 8B costs less than Claude Fable 5

Quick Recommendation

Winner for direct API pricing: Llama 3.1 8B. At the default workload, Llama 3.1 8B saves about $104.19/month ($1,267.645/year) versus Claude Fable 5.

Claude Fable 5 full pricing breakdown Llama 3.1 8B full pricing breakdown Anthropic API pricing details Meta (via Together AI) API pricing details Anthropic vs Meta (via Together AI) API pricing Codex Mini vs Claude Fable 5 Codex Mini vs Claude Opus 4.7

Feature Comparison

Feature	Claude Fable 5	Llama 3.1 8B
Provider	Anthropic	Meta (via Together AI)
Input Price	$10.00/1M tokens	$0.18/1M tokens
Output Price	$50.00/1M tokens	$0.18/1M tokens
Context Window	1,000,000 tokens	128,000 tokens
Max Output	128,000 tokens	32,768 tokens
Category	flagship	efficient
Capabilities	textvisionreasoningcode	textcode
Release Date	6/9/2026	7/23/2024

Claude Fable 5 vs Llama 3.1 8B: Which Should You Choose?

Choosing between Claude Fable 5 and Llama 3.1 8B depends on your priorities: cost efficiency, context length, or raw capability. Llama 3.1 8B is the more affordable option at $0.18/1M input tokens — 98% cheaper than Claude Fable 5. Meanwhile, Claude Fable 5 offers a significantly larger context window at 1,000,000 tokens vs 128,000 for Llama 3.1 8B.

These models come from different providers — Anthropic and Meta (via Together AI) — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to Meta (via Together AI)involves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

These models target different tiers: Claude Fable 5 is a flagship model while Llama 3.1 8B is efficient. This means they're optimized for different workloads. Claude Fable 5 is built for complex tasks that require deeper reasoning, while Llama 3.1 8B offers better value for routine operations.

Output costs matter too. Claude Fable 5 charges $50.00/1M output tokens vs $0.18 for Llama 3.1 8B. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Llama 3.1 8B has the edge here at $0.18/1M output tokens.

Multimodal capabilities: Claude Fable 5 supports vision (image inputs) while Llama 3.1 8B is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Claude Fable 5 when:

• You need a larger context window (1,000,000 tokens)
• You need more capabilities (vision, reasoning)
• You need longer outputs (up to 128,000 tokens)
• You're already using Anthropic's API ecosystem

Choose Llama 3.1 8B when:

• Budget is a primary concern
• You're already using Meta (via Together AI)'s API ecosystem
• You're running high-volume, latency-sensitive workloads

Pros and Caveats at a Glance

Claude Fable 5

• Input pricing: $10.00/M tokens
• Output pricing: $50.00/M tokens
• Context window: 1,000,000 tokens
• Max output: 128,000 tokens

Watch out for

• Higher input cost than Llama 3.1 8B
• Higher output cost than Llama 3.1 8B

Llama 3.1 8B

• Input pricing: $0.18/M tokens
• Output pricing: $0.18/M tokens
• Context window: 128,000 tokens
• Max output: 32,768 tokens

Watch out for

• Smaller context window than Claude Fable 5

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

Claude Fable 5 (Anthropic)

Cost Calculator

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Output Tokens

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Llama 3.1 8B (Meta (via Together AI))

Cost Calculator

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Frequently Asked Questions

Which is cheaper, Claude Fable 5 or Llama 3.1 8B?▼

Llama 3.1 8B is cheaper for input tokens at $0.18 per million tokens vs $10.00 for Claude Fable 5 — that's 98% savings on input costs.

What is the context window difference between Claude Fable 5 and Llama 3.1 8B?▼

Claude Fable 5 supports 1,000,000 tokens while Llama 3.1 8B supports 128,000 tokens — a difference of 872,000 tokens in favor of Claude Fable 5.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, Llama 3.1 8B is the lower-cost option, while Claude Fable 5 offers a larger context window (1,000,000 vs 128,000 tokens). Choose Llama 3.1 8B for budget sensitivity or Claude Fable 5 for longer context tasks.

Which model has better overall pricing for heavy usage?▼

At 100 requests/day with 1,000 input and 500 output tokens each, Claude Fable 5 costs about $105.00/month and Llama 3.1 8B costs about $0.81/month. Overall, Llama 3.1 8B has lower combined input + output rates ($0.18 in, $0.18 out) vs Claude Fable 5.

Where can I compare Anthropic and Meta (via Together AI) API pricing beyond this model matchup?▼

See the Anthropic vs Meta (via Together AI) provider comparison page for lineup-level averages, then review each model page for exact per-token rates.