claude-fable-5.1 vs claude-opus-4-7
Side-by-side comparison of claude-fable-5.1 and claude-opus-4-7: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. claude-fable-5.1 outperforms claude-opus-4-7 on 4 of 4 shared benchmarks.
claude-fable-5.1
Input / 1M
$10.00
Output / 1M
$50.00
Context
1M
Model ID
anthropic/claude-fable-5.1
claude-opus-4-7
Input / 1M
$5.00
Output / 1M
$25.00
Context
1M
Model ID
anthropic/claude-opus-4-7
Benchmark comparison
Intelligence Indexreasoning
claude-fable-5.156.8%
claude-opus-4-744.3%
Coding Indexcoding
claude-fable-5.181.6%
claude-opus-4-773.6%
GPQA Diamondreasoning
claude-fable-5.193.7%
claude-opus-4-791.4%
Terminal-Bench Hardagentic
claude-fable-5.1N/A
claude-opus-4-751.5%
τ²-Benchagentic
claude-fable-5.1N/A
claude-opus-4-788.6%
SciCodecoding
claude-fable-5.163.1%
claude-opus-4-7N/A
Humanity's Last Examreasoning
claude-fable-5.159.1%
claude-opus-4-742.3%
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-5.1 | claude-opus-4-7 | |
|---|---|---|
| Input price / 1M | $10.00 | $5.00 |
| Output price / 1M | $50.00 | $25.00 |
| Context window | 1M tokens | 1M tokens |
| Max output | 128K tokens | 128K tokens |
| Vision input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Prompt caching | Yes | Yes |
| Computer use | Yes | Yes |
| Provider | Anthropic PBC | Anthropic PBC |
Questions people ask
Is claude-fable-5.1 better than claude-opus-4-7?
claude-fable-5.1 outperforms claude-opus-4-7 on 4 of 4 shared benchmarks. See the benchmark comparison above for specifics: claude-fable-5.1 and claude-opus-4-7 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, claude-fable-5.1 or claude-opus-4-7?
claude-opus-4-7 is cheaper. claude-fable-5.1 costs $10.00/$50.00 per 1M input/output tokens, while claude-opus-4-7 costs $5.00/$25.00.
Can I use claude-fable-5.1 and claude-opus-4-7 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-5.1" and "anthropic/claude-opus-4-7", no other code changes needed.
What are the context windows?
claude-fable-5.1 supports up to 1M tokens of context. claude-opus-4-7 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-5.1 and claude-opus-4-7 with one line of code
Requesty provides a single OpenAI-compatible API for 600+ models. Change the model parameter, not your code.