Claude Fable 5 vs Claude Sonnet 5
API pricing, context window and capabilities for Claude Fable 5 and Claude Sonnet 5, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Fable 5 wins on coding and on intelligence. Claude Sonnet 5 wins on price.
Price
Claude Sonnet 5
Coding
Claude Fable 5
Intelligence
Claude Fable 5
Context window
Tied
Key takeaways
who wins on what, from the published numbersClaude Fable 5 wins
No clear edge on the tracked metrics.
Claude Sonnet 5 wins
- Cheaper input ($10.00 vs $2.00 /1M)
- Cheaper output ($50.00 vs $10.00 /1M)
Cheaper overall
Claude Sonnet 5
$2.00 + $10.00 /1M
Larger context
Tied
More providers
Tied
Pricing & specs
cheapest serving route · per 1M tokens| Claude Fable 5 | Claude Sonnet 5 | |
|---|---|---|
| Input $/1M | $10.00 | $2.00 best |
| Output $/1M | $50.00 | $10.00 best |
| Context window | 1M | 1M |
| Max output | 128K | 128K |
| Serving providers | 4 | 4 |
| Released | 2026-06-09 | 2026-06-30 |
Benchmarks
Artificial Analysis indices, side by side| Claude Fable 5 | Claude Sonnet 5 | |
|---|---|---|
| Intelligence | 59.9 best | 53.4 |
| Coding | 76.5 best | 71.5 |
| GPQA Diamond | 93% best | 91% |
| Output speed | 46 t/s | 67 t/s best |
| Latency (TTFT) | 29.29s best | 42.19s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Fable 5
via Amazon Bedrock
$100
Claude Sonnet 5
via Amazon Bedrock
$20
Capabilities
feature support, side by side| Feature | Claude Fable 5 | Claude Sonnet 5 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Fable 5 or Claude Sonnet 5?
Claude Sonnet 5 is cheaper for input ($10.00 vs $2.00 per 1M tokens). Claude Sonnet 5 is cheaper for output ($50.00 vs $10.00 per 1M tokens).
What is the context window difference between Claude Fable 5 and Claude Sonnet 5?
Both Claude Fable 5 and Claude Sonnet 5 have about a 1M-token context window.
How do Claude Fable 5 and Claude Sonnet 5 compare on benchmarks?
On the tracked Artificial Analysis indices, Claude Fable 5 leads on coding, and Claude Fable 5 leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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