Claude Fable 5.1 vs Hy3
API pricing, context window and capabilities for Claude Fable 5.1 and Hy3, 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 Terminal-Bench, on intelligence and on context window. Hy3 wins on price.
Price
Hy3
Terminal-Bench
Claude Fable 5.1
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 5)
- Supports vision
Hy3 wins
- Cheaper input ($10.00 vs $0.132 /1M)
- Cheaper output ($50.00 vs $0.528 /1M)
- Higher max output (128K vs 262K)
Cheaper overall
Hy3
$0.132 + $0.528 /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 | |
|---|---|---|
| Input $/1M | $10.00via Anthropic | $0.132OpenRouter routed quote best |
| Output $/1M | $50.00via Anthropic | $0.528OpenRouter routed quote best |
| Context window | 1M best | 262K |
| Max output | 128K | 262K best |
| Serving providers | 7 best | 5 |
| Date | Released Sep 1, 2026 | Released Jul 6, 2026 |
Benchmarks
Benchmark scores, side by side| Claude Fable 5.1 | Hy3 | |
|---|---|---|
| Intelligence | 53.4 best | 25.3 |
| Terminal-Bench | 91% best | 64% |
| GPQA Diamond | 94% best | 90% |
| Output speed | 71 t/s | 86 t/s best |
| Latency (TTFT) | 249.68s | 2.81s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Fable 5.1
via Amazon Bedrock
$100
Hy3
via OpenRouter
$1.19
Capabilities
feature support, side by side| Feature | Claude Fable 5.1 | Hy3 |
|---|---|---|
| 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?
Hy3 is cheaper for input ($10.00 vs $0.132 per 1M tokens) as an OpenRouter routed quote. Hy3 is cheaper for output ($50.00 vs $0.528 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between Claude Fable 5.1 and Hy3?
Claude Fable 5.1 has a 1M-token context window and Hy3 has 262K tokens, so Claude Fable 5.1 can take a larger prompt.
How do Claude Fable 5.1 and Hy3 compare on benchmarks?
On the tracked benchmarks, Claude Fable 5.1 leads on Terminal-Bench, and Claude Fable 5.1 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
Every weekday
AI moves fast. Here's your debrief.
News, analysis, tools, and more.
For people who build with AI