Claude Fable 5.1 vs Hy3 preview
API pricing, context window and capabilities for Claude Fable 5.1 and Hy3 preview, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Fable 5.1 wins on intelligence and on context window. Hy3 preview wins on price. Benchmark data is unavailable for one or both models.
Price
Hy3 preview
Terminal-Bench
Not called
Intelligence
Claude Fable 5.1
Context window
Claude Fable 5.1
Key takeaways
who wins on what, from the published numbersClaude Fable 5.1 wins
- Larger context window (1M vs 262K)
- More serving providers (7 vs 1)
- Supports vision
- Supports structured output
- Has web search
Hy3 preview wins
- Cheaper input ($10.00 vs $0.18 /1M)
- Cheaper output ($50.00 vs $0.60 /1M)
- Higher max output (128K vs 236K)
Cheaper overall
Hy3 preview
$0.18 + $0.60 /1M
Larger context
Claude Fable 5.1
1M
More providers
Claude Fable 5.1
7 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| Claude Fable 5.1 | Hy3 preview | |
|---|---|---|
| Input $/1M | $10.00via Anthropic | $0.18OpenRouter routed quote best |
| Output $/1M | $50.00via Anthropic | $0.60OpenRouter routed quote best |
| Context window | 1M best | 262K |
| Max output | 128K | 236K best |
| Serving providers | 7 best | 1 |
| Date | Released Sep 1, 2026 | Released Apr 20, 2026 |
Benchmarks
Benchmark scores, side by side| Claude Fable 5.1 | Hy3 preview | |
|---|---|---|
| Intelligence | 53.4 best | 22.7 |
| Terminal-Bench | 91% | Not available |
| GPQA Diamond | 94% best | 87% |
| Output speed | 71 t/s | Not available |
| Latency (TTFT) | 249.68s | Not available |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Fable 5.1
via Amazon Bedrock
$100
Hy3 preview
via OpenRouter
$1.50
Capabilities
feature support, side by side| Feature | Claude Fable 5.1 | Hy3 preview |
|---|---|---|
| Vision | ✓ | — |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | — |
| Web search | ✓ | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Fable 5.1 or Hy3 preview?
Hy3 preview is cheaper for input ($10.00 vs $0.18 per 1M tokens) as an OpenRouter routed quote. Hy3 preview is cheaper for output ($50.00 vs $0.60 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between Claude Fable 5.1 and Hy3 preview?
Claude Fable 5.1 has a 1M-token context window and Hy3 preview has 262K tokens, so Claude Fable 5.1 can take a larger prompt.
How do Claude Fable 5.1 and Hy3 preview compare on benchmarks?
On the tracked benchmarks, Claude Fable 5.1 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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