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claude-fable-5 vs claude-opus-4-6

Side-by-side comparison of claude-fable-5 and claude-opus-4-6: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. claude-fable-5 outperforms claude-opus-4-6 on 7 of 7 shared benchmarks.

Benchmark comparison

Intelligence Indexreasoning
claude-fable-564.9%
claude-opus-4-652.9%
Coding Indexcoding
claude-fable-562.0%
claude-opus-4-648.1%
GPQA Diamondreasoning
claude-fable-592.6%
claude-opus-4-689.6%
Terminal-Bench Hardagentic
claude-fable-562.9%
claude-opus-4-646.2%
τ²-Benchagentic
claude-fable-598.5%
claude-opus-4-692.1%
SciCodecoding
claude-fable-560.2%
claude-opus-4-651.9%
Humanity's Last Examreasoning
claude-fable-553.3%
claude-opus-4-636.7%

Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.

Pricing & specifications

claude-fable-5claude-opus-4-6
Input price / 1M$10.00$5.00
Output price / 1M$50.00$25.00
Context window1M tokens1M tokens
Max output128K tokens128K tokens
Vision inputYesYes
Tool callingYesYes
ReasoningYesYes
Prompt cachingYesYes
Computer useYesYes
ProviderAnthropic PBCAnthropic PBC

Questions people ask

Is claude-fable-5 better than claude-opus-4-6?
claude-fable-5 outperforms claude-opus-4-6 on 7 of 7 shared benchmarks. See the benchmark comparison above for specifics: claude-fable-5 and claude-opus-4-6 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, claude-fable-5 or claude-opus-4-6?
claude-opus-4-6 is cheaper. claude-fable-5 costs $10.00/$50.00 per 1M input/output tokens, while claude-opus-4-6 costs $5.00/$25.00.
Can I use claude-fable-5 and claude-opus-4-6 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch between "anthropic/claude-fable-5" and "anthropic/claude-opus-4-6", no other code changes needed.
What are the context windows?
claude-fable-5 supports up to 1M tokens of context. claude-opus-4-6 supports up to 1M tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.

Switch between claude-fable-5 and claude-opus-4-6 with one line of code

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