Hy3 vs. Claude 4.5 Sonnet (Reasoning)
Comparison between Hy3 and Claude 4.5 Sonnet (Reasoning) across intelligence, price, speed, context window and more.
For details relating to our methodology, see our Methodology page.
Highlights
Model Comparison
Hy3 | Claude 4.5 Sonnet (Reasoning) | ||
|---|---|---|---|
| Intelligence Index | 41 | 36 | Hy3 is more intelligent than Claude 4.5 Sonnet (Reasoning) |
| Price per 1M Tokens | $0.11 | $2.31 | Hy3 is cheaper than Claude 4.5 Sonnet (Reasoning) |
| Output Speed | 71 tokens/s | 46 tokens/s | Hy3 is faster than Claude 4.5 Sonnet (Reasoning) |
| Time to First Token | 2.75s | 12.84s | Hy3 responds faster than Claude 4.5 Sonnet (Reasoning) |
| Context Window | 256k tokens~384 A4 pages of size 12 Arial font | 1000k tokens~1,500 A4 pages of size 12 Arial font | Claude 4.5 Sonnet (Reasoning) has a larger context window than Hy3 |
| Release Date | July 2026 | September 2025 | Hy3 has a more recent release date than Claude 4.5 Sonnet (Reasoning) |
| Reasoning | Yes | Yes | Both Hy3 and Claude 4.5 Sonnet (Reasoning) have reasoning |
| Image Input Support | No | Yes | Claude 4.5 Sonnet (Reasoning) has image input support while Hy3 does not |
| Open Source (Weights) | No | Hy3 is open source while Claude 4.5 Sonnet (Reasoning) is proprietary |
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Agentic real-world work tasks, (Elo-500)/2000
Agentic tool use
Agentic coding & terminal use
Coding
Reasoning & knowledge
Scientific reasoning
Physics reasoning
Knowledge
1 - hallucination rate
Long context reasoning
Agentic knowledge work, Elo
Agentic SaaS workflows
Legal agentic work, criterion pass rate
Agentic business operations
Instruction following
Long-horizon agentic tasks
Kubernetes incident root-cause analysis
Visual reasoning
AA-Briefcase
AA-Briefcase Elo
AA-Omniscience
AA-Omniscience Index
Openness Index
Artificial Analysis Openness Index: Score
Intelligence Index Comparisons
Intelligence Index vs. Cost per Intelligence Index Task
Token Use
Output Tokens per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Speed
Measured by Output Speed (tokens per second)
Output Speed
Time per Intelligence Index Task
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Frequently Asked Questions
Hy3 is more intelligent. Hy3 scores 41, compared with Claude 4.5 Sonnet (Reasoning) at 36 on the Artificial Analysis Intelligence Index.
Hy3 is faster. Hy3 generates 70.8 tokens per second, compared with Claude 4.5 Sonnet (Reasoning) at 45.9 tokens per second.
Hy3 is cheaper. Hy3 costs $0.11 per 1M tokens, compared with Claude 4.5 Sonnet (Reasoning) at $2.31 per 1M tokens (7:2:1 cache hit/input/output ratio).
Hy3 has lower latency. Hy3 has a time to first token of 2.75s, compared with Claude 4.5 Sonnet (Reasoning) at 12.84s.
Claude 4.5 Sonnet (Reasoning) has a larger context window. Claude 4.5 Sonnet (Reasoning) supports 1.0M tokens, compared with Hy3 at 260k tokens.