Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Price, context and performance head to head. Data synced from the provider catalog.
Cheaper
GPT-5.4
Larger context
GPT-5.4
Faster
Tied
Higher quality
Claude Fable 5
| Feature | Claude Fable 5 | GPT-5.4 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Tier | Mid-tier | Flagship |
| Input per 1M tokens | $10 | $2.5 |
| Output per 1M tokens | $50 | $15 |
| Cached input per 1M | $1 | $0.25 |
| Context window | 1M | 1.1M |
| Intelligence index | 62/100 | 53/100 |
| Coding index | 77/100 | 71/100 |
| Agentic index | 57/100 | 44/100 |
| GPQA Diamond | 1 | 1 |
| Tau-bench (airline) | 1 | 1 |
| Speed | Standard | Standard |
| Vision (image input) | Yes | Yes |
| Function calling | Yes | Yes |
| Batch API | No | No |
Enter how many requests per day you send with an average prompt (1K input + 1K output) and compare the monthly cost of both models.
GPT-5.4 saves $128/mo vs Claude Fable 5
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We integrate Claude Fable 5 or GPT-5.4 into your product with caching, observability and continuous evaluation — typically 40-80% cheaper than the obvious first pick.
Other combinations developers frequently compare in 2026.
What people ask us when comparing GPT, Claude, Gemini and the rest.
A token is the unit an AI model processes: usually between half a word and a full word. Rule of thumb: 1,000 tokens ≈ 750 English words. A 20-word sentence is about 26 tokens; a 300-word email is around 400. Models charge for input tokens (your prompt) and output tokens (their answer) separately.