Llama 3.1 405B Instruct vs Hy4 preview
At a Glance
| Compare |  Hy4 previewTencent | |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $0.834Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $2.501Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 131K | 1,000K |
| Model facts checked | Aug 28, 2026View model evidence → | Sep 2, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Llama-3.1-405B-Instruct | Hy4 preview |
|---|---|---|
| Developer | Meta | Tencent |
| Family | Llama 3 1 405b Instruct | Hy4 |
| Model | Llama-3.1-405B-Instruct | Hy4 preview |
| Version | Llama-3.1-405B-Instruct | Hy4 preview |
| Lifecycle | active | preview |
| Released | 2024-07-23 | 2026-08-28 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 131K | 1,000K |
| Total parameters | 405.9B | 770B |
| Active parameters | Unknown | 49B |
| License | llama3.1 | apache-2.0 |
| Open weights | Yes | Yes |
| API available | Yes | Yes |
| Self-hostable | Yes | Yes |
| Provider access | Together Ai (Standard) | Openrouter (Standard) |
| Capabilities | chat, generation, tools | chat, generation, reasoning, tools |
Llama 3.1 405B Instruct Capabilities
Hy4 preview Capabilities
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Primary Evidence
Sources and Freshness
Questions
Llama 3.1 405B Instruct vs Hy4 preview FAQs
Is Llama 3.1 405B Instruct or Hy4 preview better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Llama 3.1 405B Instruct and Hy4 preview, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Llama 3.1 405B Instruct or Hy4 preview?+
Only Hy4 preview has a directly sourced input price: $0.834 per million tokens. Only Hy4 preview has a directly sourced output price: $2.501 per million tokens.
Which has a larger context window, Llama 3.1 405B Instruct or Hy4 preview?+
Hy4 preview has the larger sourced context window. Llama 3.1 405B Instruct supports 131K and Hy4 preview supports 1,000K.
Which performs better in benchmarks, Llama 3.1 405B Instruct or Hy4 preview?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Llama 3.1 405B Instruct or Hy4 preview be self-hosted?+
Both models have the same recorded self-hosting status: supported. Llama 3.1 405B Instruct is open weight; Hy4 preview is open weight.
Can Llama 3.1 405B Instruct and Hy4 preview understand images?+
Llama 3.1 405B Instruct is not 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, Llama 3.1 405B Instruct or Hy4 preview?+
Neither has a larger sourced maximum output. Llama 3.1 405B Instruct is — and Hy4 preview is —.
Do Llama 3.1 405B Instruct and Hy4 preview support reasoning and tool use?+
Llama 3.1 405B Instruct: tool calling. Hy4 preview: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Llama 3.1 405B Instruct or Hy4 preview?+
Llama 3.1 405B Instruct has 1 sourced provider route; Hy4 preview has 1, a tie.
Which offers better value, Llama 3.1 405B Instruct 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.