Claude Fable 5 vs GPT-5.5 Pro: API pricing comparison
Anthropic Claude Fable 5 vs OpenAI GPT-5.5 Pro: token prices, batch and cache rates, Arena ELO, and cost per request for 8 business use cases. Prices in USD per 1 million tokens. Data snapshot: 2026-11-12.
Claude Fable 5 vs GPT-5.5 Pro: the short version
At the prices we quote, Claude Fable 5 costs less than GPT-5.5 Pro on input and on output: $10.00 against $30.00 per 1M input tokens (67% less), and $50.00 against $180.00 per 1M output tokens (72% less). With the Support Ticket profile (1,500 input and 500 output tokens per request), 1,000 requests cost $40.00 on Claude Fable 5 and $135.00 on GPT-5.5 Pro at list price, 70% less on Claude Fable 5. The context window is 1M tokens on both. Both are recorded here as proprietary, with access through an API. Prices as quoted on 2026-11-12. Each price is the list price of one host, the one we quote for that model. A model sold by several hosts has other prices, listed on its model page.
Claude Fable 5 pricing (Anthropic)
- Input: $10.00 per 1M tokens
- Output: $50.00 per 1M tokens
- Batch API (input/output): $5.00 / $25.00
- Prompt-cache read: $1.00
- Context window: 1M
- Arena ELO: 1491 (as of 2026-11-08)
- Full Claude Fable 5 pricing page
GPT-5.5 Pro pricing (OpenAI)
- Input: $30.00 per 1M tokens
- Output: $180.00 per 1M tokens
- Batch API (input/output): $15.00 / $90.00
- Prompt-cache read: not published
- Context window: 1M
- Full GPT-5.5 Pro pricing page
Cost per 1,000 requests by business use case
List price vs after discounts (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates).
| Use case | Tokens (in/out) | Claude Fable 5 list price | Claude Fable 5 after discounts | GPT-5.5 Pro list price | GPT-5.5 Pro after discounts |
|---|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $40.00 | $32.35 | $135.00 | $135.00 (no published discount) |
| Knowledge Q&A | 2,000 / 800 | $60.00 | $48.10 | $204.00 | $204.00 (no published discount) |
| Meeting Summary | 10,000 / 1,200 | $160.00 | $77.50 | $516.00 | $258.00 |
| Marketing Content | 2,500 / 1,800 | $115.00 | $110.75 | $399.00 | $399.00 (no published discount) |
| Coding Task | 3,000 / 2,000 | $130.00 | $117.25 | $450.00 | $450.00 (no published discount) |
| Invoice Processing | 1,500 / 600 | $45.00 | $21.37 | $153.00 | $76.50 |
| Call Summary | 2,000 / 700 | $55.00 | $27.00 | $186.00 | $93.00 |
| Agent Workflow | 6,000 / 3,000 | $210.00 | $174.30 | $720.00 | $720.00 (no published discount) |
Common questions about Claude Fable 5 vs GPT-5.5 Pro
- Which is cheaper, Claude Fable 5 or GPT-5.5 Pro?
- At the prices we quote, Claude Fable 5 costs less than GPT-5.5 Pro on input and on output: $10.00 against $30.00 per 1M input tokens (67% less), and $50.00 against $180.00 per 1M output tokens (72% less). Prices as quoted on 2026-11-12. Each price is the list price of one host, the one we quote for that model. A model sold by several hosts has other prices, listed on its model page.
- What do 1,000 Support Ticket requests cost on Claude Fable 5 and on GPT-5.5 Pro?
- With the Support Ticket profile (1,500 input and 500 output tokens per request), 1,000 requests cost $40.00 on Claude Fable 5 and $135.00 on GPT-5.5 Pro at list price, 70% less on Claude Fable 5. Prices as quoted on 2026-11-12.
- How do Claude Fable 5 and GPT-5.5 Pro compare on context window and licence?
- The context window is 1M tokens on both. Both are recorded here as proprietary, with access through an API.
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These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.