Claude Fable 5.1 pricing for marketing copy

Quick start

Call Claude Fable 5.1 with the Anthropic Python SDK:

from anthropic import Anthropic

client = Anthropic()
response = client.messages.create(
    model="claude-fable-5-1",
    max_tokens=3000,
    messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.1580 per call at standard rates
# Input:  $10.00/MTok
# Output: $50.00/MTok

How Claude Fable 5.1 compares on cost

Per-call cost for all models scoring 50+ on marketing copy benchmarks. Hover for details.

Cheapest viable option: Claude Sonnet 5 at $0.0316/call (80% less, 87/100 quality).

What drives marketing copy cost

Marketing copy is generated in variants (the same brief producing many versions for testing), so cost scales with variant count rather than brief length. Requesting several variants in one call is markedly cheaper than several calls, because the brief and brand context are sent once instead of repeatedly.

For Claude Fable 5.1 specifically, that means output tokens cost 5.0x more than input, at $50.00 vs $10.00 per MTok. At this use case’s 800/3,000 token split, output accounts for 95% of the $0.1580 per-call cost.

Claude Fable 5.1 quality benchmarks for marketing copy

Benchmark data for marketing copy is pending for Claude Fable 5.1. Test against your own evaluation suite before moving to production.

Performance across all task types

Claude Fable 5.1 scores by task type. Marketing Copy highlighted.

Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.

About Claude Fable 5.1

Other models from Claude

You can compare Claude Fable 5.1 head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.

Frequently asked questions