Llama 3.1 405B vs Qwen3.8 Flash
At a Glance
| Compare |  Llama 3.1 405BMeta |  Qwen3.8 FlashQwen |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| CostLower is better · Published-token output estimate | UnrankedNot in the 44-model eligible cohort | #4 of 44$0.021 per LiveBench case |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $0.113Deepinfra ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $0.382Deepinfra ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 131K | 1,000K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 29, 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 | Qwen3.8-Flash |
|---|---|---|
| Developer | Meta | Qwen |
| Family | Llama 3 1 405b | Qwen3 8 Flash |
| Model | Llama-3.1-405B | Qwen3.8-Flash |
| Version | Llama-3.1-405B | Qwen3.8-Flash |
| Lifecycle | active | active |
| Released | 2024-07-23 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text, Image, Video |
| Output modalities | Text | Text |
| Context window | 131K | 1,000K |
| Total parameters | 405.9B | Unknown |
| Active parameters | Unknown | Unknown |
| License | llama3.1 | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Together Ai (Standard) | Alibaba Cloud Model Studio (Standard), Deepinfra (Standard), Openrouter (Standard), Together Ai (Standard) |
| Capabilities | generation | agents, chat, computer-use, reasoning, structured_outputs, tools, vision |
Llama 3.1 405B Capabilities
Qwen3.8 Flash Capabilities
Related Comparisons
All text comparisons →| A | Pair | B | Context |
|---|---|---|---|
Llama-3.1-405BMeta | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Llama-3.1-405BMeta | cross-developer peerstext |
 Gemini 3.1 ProGoogle DeepMind | vs | Llama-3.1-405BMeta | cross-developer peerstext |
 DeepSeek-V4.1-FlashDeepSeek | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs | Grok 4.6xAI | cross-developer peerstext |
Llama-3.1-405BMeta | vs | Qwen3.8-MaxQwen | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Llama-3.1-405BMeta | cross-developer peerstext |
Llama-3.1-405BMeta | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Llama 3.1 405B vs Qwen3.8 Flash FAQs
Is Llama 3.1 405B or Qwen3.8 Flash better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Llama 3.1 405B and Qwen3.8 Flash, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Llama 3.1 405B or Qwen3.8 Flash?+
Only Qwen3.8 Flash has a directly sourced input price: $0.113 per million tokens. Only Qwen3.8 Flash has a directly sourced output price: $0.382 per million tokens.
Which has a larger context window, Llama 3.1 405B or Qwen3.8 Flash?+
Qwen3.8 Flash has the larger sourced context window. Llama 3.1 405B supports 131K and Qwen3.8 Flash supports 1,000K.
Which performs better in benchmarks, Llama 3.1 405B or Qwen3.8 Flash?+
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 or Qwen3.8 Flash be self-hosted?+
Llama 3.1 405B is the only model in this pair currently marked as self-hostable. Llama 3.1 405B is open weight; Qwen3.8 Flash is not marked open weight.
Can Llama 3.1 405B and Qwen3.8 Flash understand images?+
Llama 3.1 405B is not documented with image input; Qwen3.8 Flash is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Llama 3.1 405B or Qwen3.8 Flash?+
Neither has a larger sourced maximum output. Llama 3.1 405B is — and Qwen3.8 Flash is 131K.
Do Llama 3.1 405B and Qwen3.8 Flash support reasoning and tool use?+
Llama 3.1 405B: none of these features are definitively sourced. Qwen3.8 Flash: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Llama 3.1 405B or Qwen3.8 Flash?+
Llama 3.1 405B has 1 sourced provider route; Qwen3.8 Flash has 4, so Qwen3.8 Flash has broader tracked availability.
Which offers better value, Llama 3.1 405B or Qwen3.8 Flash?+
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.