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GPT-4 Turbo vs Claude Fable 5

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OpenAI · 128k context | Anthropic · 1M context

Pricing Comparison

Metric	GPT-4 Turbo	Claude Fable 5
Input / 1M tokens	$10	$10
Output / 1M tokens	$30	$50
Cached input / 1M	—	$1
Context window	128k	1M
Provider	OpenAI	Anthropic

Cost Calculator

Input tokens

Output tokens

Requests/day

💰 GPT-4 Turbo saves $3,000.00/month (29% cheaper)

OGPT-4 TurboCHEAPER

Per request$0.0250

Daily$250.00

Monthly$7,500.00

Yearly$91,250.00

AClaude Fable 5

Per request$0.0350

Daily$350.00

Monthly$10,500.00

Yearly$127,750.00

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Choose GPT-4 Turbo when…

✓ Cheaper for generation-heavy workloads (lower output cost)
✓ Optimized for: Legacy GPT-4 workloads

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Choose Claude Fable 5 when…

✓ Larger context window (1M vs 128k) — better for long documents
✓ Supports prompt caching — save up to 90% on repeated prompts
✓ Optimized for: Frontier reasoning & agents

Related Comparisons

GPT-4 Turbo vs GPT-5 GPT-4 Turbo vs GPT-5 Mini GPT-4 Turbo vs GPT-4.1 GPT-4 Turbo vs GPT-4.1 Mini Claude Fable 5 vs GPT-5 Claude Fable 5 vs GPT-5 Mini