Live technical benchmark comparing token limits, input/output API pricing, and modalities.
openai/gpt-4o
anthropic/claude-fable-5
The primary differentiator in developer workflow design is context retention capacity. OpenAI: GPT-4o offers a context window of 128,000 tokens, while Anthropic: Claude Fable 5 supports up to 1,000,000 tokens.
This gives Anthropic: Claude Fable 5 a substantial advantage of 8x larger prompt processing capacity, making it the ideal choice for loading massive codebases, long runbooks, or extensive research data.
Evaluating pricing metrics is critical for running high-frequency background cron workflows.For input queries, OpenAI: GPT-4o costs $2.50 per 1M tokens, compared to $10.00 per 1M tokens for Anthropic: Claude Fable 5.
OpenAI: GPT-4o is the more cost-effective choice for input prompts, yielding savings of 75% compared to Anthropic: Claude Fable 5. Similarly, output generations are cheaper on OpenAI: GPT-4o ($10.00 vs $50.00), representing a savings of 80% on completion tokens.
Anthropic: Claude Fable 5 is better for large document parsing due to its larger context capacity of 1,000,000 tokens, enabling it to fit approximately 8x more content than OpenAI: GPT-4o in a single prompt.
OpenAI: GPT-4o is more budget-friendly for prompt inputs, costing $2.50 per million tokens (a saving of 75%). For output completion tokens, OpenAI: GPT-4o is more cost-effective ($10.00 per 1M tokens).
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