Claude Opus 4.5 vs Hy4 preview
Model Markets Rankings
Intelligence, Cost, and Efficiency
| Ranking | Claude Opus 4.5 | Hy4 preview |
|---|---|---|
| CostLower is better · Published-token output estimate | #34 of 36$0.380 per LiveBench case | UnrankedNot in the 36-model eligible cohort |
Ranks come from the current complete eligible cohorts. Green highlights appear only when both models are ranked in the same metric. Missing required inputs remain unranked, and the three dimensions are not collapsed into an overall winner.
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Claude Opus 4.5 | Hy4 preview |
|---|---|---|
| Developer | Anthropic | Tencent |
| Family | Claude 4 | Hy4 |
| Model | Claude Opus 4.5 | Hy4 preview |
| Version | Claude Opus 4.5 | Hy4 preview |
| Lifecycle | active | preview |
| Released | 2025-11-24 | 2026-08-28 |
| Knowledge cutoff | 2025-05-01 | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 200K | 1,000K |
| Total parameters | Unknown | 770B |
| Active parameters | Unknown | 49B |
| License | Unknown | apache-2.0 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Anthropic (Standard) | Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, tools |
14 comparable fields · 12 material differences · Pair passes the primary-source comparison gate
Claude Opus 4.5 Capabilities
Hy4 preview Capabilities
Internal Comparison Graph
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Primary Evidence
Sources and Freshness
Questions
Claude Opus 4.5 vs Hy4 preview FAQs
Is Claude Opus 4.5 or Hy4 preview better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 4.5 and Hy4 preview, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 4.5 or Hy4 preview?+
Claude Opus 4.5 is $5.00 and Hy4 preview is $0.834 per million tokens, so Hy4 preview is cheaper on this metric. Claude Opus 4.5 is $25.00 and Hy4 preview is $2.501 per million tokens, so Hy4 preview is cheaper on this metric.
Which has a larger context window, Claude Opus 4.5 or Hy4 preview?+
Hy4 preview has the larger sourced context window. Claude Opus 4.5 supports 200K and Hy4 preview supports 1,000K.
Which performs better in benchmarks, Claude Opus 4.5 or Hy4 preview?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Opus 4.5 or Hy4 preview be self-hosted?+
Hy4 preview is the only model in this pair currently marked as self-hostable. Claude Opus 4.5 is not marked open weight; Hy4 preview is open weight.
Can Claude Opus 4.5 and Hy4 preview understand images?+
Claude Opus 4.5 is documented with image input; Hy4 preview is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 4.5 or Hy4 preview?+
Neither has a larger sourced maximum output. Claude Opus 4.5 is 64K and Hy4 preview is —.
Do Claude Opus 4.5 and Hy4 preview support reasoning and tool use?+
Claude Opus 4.5: reasoning, tool calling, and image input. Hy4 preview: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 4.5 or Hy4 preview?+
Claude Opus 4.5 has 1 sourced provider route; Hy4 preview has 1, a tie.
Which offers better value, Claude Opus 4.5 or Hy4 preview?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.