claude-fable-5 · Anthropic
Anthropic's flagship: 1M-token context at standard pricing and the deepest agentic capability in the lineup.
Last checked Aug 16, 2026. Calculations use the listed base rates; provider-specific tiers, cache writes, batch pricing, and long-context rules may differ. Note: Cache writes cost $12.50/M (5m) or $20/M (1h). Fable's tokenizer yields ~30% more tokens than pre-4.7 Claudes. Confirm the current rate at the official provider source.
Input
$10.00
per 1M tokens
Output
$50.00
per 1M tokens
Cached input
$1.00
per 1M tokens
Context window
1M
max output 128K
Claude Fable 5 cost calculator
What Claude Fable 5 costs per task
| Use case | Input tokens | Output tokens | Cost / request | Monthly @ 1K req/day |
|---|---|---|---|---|
| Customer support chatbot | 3,500 | 350 | $0.0304 | $913.50 |
| RAG / search-augmented answers | 8,000 | 500 | $0.069 | $2,070.00 |
| AI coding assistant | 12,000 | 2,000 | $0.1552 | $4,656.00 |
| Document summarization | 25,000 | 600 | $0.2575 | $7,725.00 |
| Agentic workflow | 40,000 | 1,500 | $0.241 | $7,230.00 |
| Content generation | 800 | 1,200 | $0.0658 | $1,975.20 |
| Data extraction & tagging | 2,000 | 250 | $0.0289 | $867.00 |
| Translation | 5,000 | 5,500 | $0.3183 | $9,547.50 |
Assumes each use case's typical cacheable share of input. See full cost scenarios.
Compare with alternatives
| Model | Input /M | Output /M | Context | Chat request* |
|---|---|---|---|---|
| Claude Fable 5 | $10.00 | $50.00 | 1M | $0.062 |
| GPT-5.6 Solcompare | $5.00 | $30.00 | 1.1M | $0.035 |
| Claude Opus 5compare | $5.00 | $25.00 | 1M | $0.031 |
| Gemini 3.1 Pro | $2.00 | $12.00 | 1M | $0.014 |
*4,000 in + 800 out tokens, 50% cached input where available.
Related calculations
FAQ
Claude Fable 5 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens, with cached input at $1.00 per 1M tokens. Verified Aug 16, 2026 against https://platform.claude.com/docs/en/docs/about-claude/pricing.
Claude Fable 5 supports a 1,000,000-token context window with up to 128,000 output tokens per request, tokenized with Claude BPE (Fable gen, ~30% more tokens for same text).
At $10.00/M input and $50.00/M output, Claude Fable 5 sits above GPT-5.6 Sol ($5.00/M in, $30.00/M out) — see the comparison table for full-workload differences.