Comparison
Claude Fable 5 vs GPT-5.5
GPT-5.5 costs 50% less per input token than Claude Fable 5. On generated (output) tokens, Claude Fable 5 costs 40% more than GPT-5.5. GPT-5.5 accepts more context per request than Claude Fable 5.
| Field | Claude Fable 5 | GPT-5.5 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context window | 1M | 1.1M |
| Max output | 128K | 128K |
| Input / 1M | $10.00 | $5.0050% cheaper |
| Output / 1M | $50.00 | $30.0040% cheaper |
| Cached input / 1M | $1.00 | $0.5050% cheaper |
| Batch discount | 50% | 50% |
| Release date | 2026-06-09 | 2026-04-23 |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | Claude Fable 5 | GPT-5.5 |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $1,800 | $1,000cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $2,850 | $1,530cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $1,375 | $725.00cheaper |
Claude Fable 5 vs GPT-5.5 FAQ
- Is Claude Fable 5 cheaper than GPT-5.5?
- Claude Fable 5 costs $10.00 per 1M input tokens versus $5.00 for GPT-5.5 — GPT-5.5 is 100% cheaper per input token.
- Which is cheaper for output tokens, Claude Fable 5 or GPT-5.5?
- Claude Fable 5 charges $50.00 per 1M output tokens; GPT-5.5 charges $30.00 per 1M output tokens.
- Which has the larger context window, Claude Fable 5 or GPT-5.5?
- GPT-5.5 does, with a 1,050,000-token context window.
- Do Claude Fable 5 and GPT-5.5 offer cache pricing?
- Claude Fable 5 discounts cached input to $1.00 per 1M tokens. GPT-5.5 discounts cached input to $0.50 per 1M tokens.
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