Aleph Alpha Luminous Extended vs Llama 3.1 405B Instruct
Aleph Alpha Luminous Extended (2022) and Llama 3.1 405B Instruct (2024) are compact production models from Aleph Alpha and AI at Meta. Aleph Alpha Luminous Extended ships a 8K-token context window, while Llama 3.1 405B Instruct ships a 128K-token context window. On pricing, Aleph Alpha Luminous Extended costs $0.04/1M input tokens versus $2.4/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Aleph Alpha Luminous Extended is ~5900% cheaper at $0.04/1M; pay for Llama 3.1 405B Instruct only for long-context analysis.
Decision scorecard
Local evidence first| Signal | Aleph Alpha Luminous Extended | Llama 3.1 405B Instruct |
|---|---|---|
| Decision fit | General | RAG, Long context, and Classification |
| Context window | 8K | 128K |
| Cheapest output | $0.12/1M tokens | $2.4/1M tokens |
| Provider routes | 1 tracked | 11 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Aleph Alpha Luminous Extended has the lower cheapest tracked output price at $0.12/1M tokens.
- Llama 3.1 405B Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Llama 3.1 405B Instruct has broader tracked provider coverage for fallback and procurement flexibility.
- Llama 3.1 405B Instruct uniquely exposes Structured outputs in local model data.
- Local decision data tags Llama 3.1 405B Instruct for RAG, Long context, and Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Aleph Alpha Luminous Extended
$62.00
Cheapest tracked route: Aleph Alpha
Llama 3.1 405B Instruct
$2,520
Cheapest tracked route: AWS Bedrock
Estimated monthly gap: $2,458. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Aleph Alpha Luminous Extended and Llama 3.1 405B Instruct; plan for SDK, billing, or endpoint changes.
- Llama 3.1 405B Instruct is $2.28/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Llama 3.1 405B Instruct adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Llama 3.1 405B Instruct and Aleph Alpha Luminous Extended; plan for SDK, billing, or endpoint changes.
- Aleph Alpha Luminous Extended is $2.28/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2022-10-12 | 2024-07-23 |
| Context window | 8K | 128K |
| Parameters | — | 405B |
| Architecture | decoder only | decoder only |
| License | Proprietary | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Aleph Alpha Luminous Extended | Llama 3.1 405B Instruct |
|---|---|---|
| Input price | $0.04/1M tokens | $2.4/1M tokens |
| Output price | $0.12/1M tokens | $2.4/1M tokens |
| Providers |
Capabilities
| Capability | Aleph Alpha Luminous Extended | Llama 3.1 405B Instruct |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | Yes |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on structured outputs: Llama 3.1 405B Instruct. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Aleph Alpha Luminous Extended lists $0.04/1M input and $0.12/1M output tokens, while Llama 3.1 405B Instruct lists $2.4/1M input and $2.4/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Aleph Alpha Luminous Extended lower by about $2.34 per million blended tokens. Availability is 1 providers versus 11, so concentration risk also matters.
Choose Aleph Alpha Luminous Extended when provider fit and lower input-token cost are central to the workload. Choose Llama 3.1 405B Instruct when long-context analysis, larger context windows, and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, Aleph Alpha Luminous Extended or Llama 3.1 405B Instruct?
Llama 3.1 405B Instruct supports 128K tokens, while Aleph Alpha Luminous Extended supports 8K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Aleph Alpha Luminous Extended or Llama 3.1 405B Instruct?
Aleph Alpha Luminous Extended is cheaper on tracked token pricing. Aleph Alpha Luminous Extended costs $0.04/1M input and $0.12/1M output tokens. Llama 3.1 405B Instruct costs $2.4/1M input and $2.4/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Aleph Alpha Luminous Extended or Llama 3.1 405B Instruct open source?
Aleph Alpha Luminous Extended is listed under Proprietary. Llama 3.1 405B Instruct is listed under Open Source. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for structured outputs, Aleph Alpha Luminous Extended or Llama 3.1 405B Instruct?
Llama 3.1 405B Instruct has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Aleph Alpha Luminous Extended and Llama 3.1 405B Instruct?
Aleph Alpha Luminous Extended is available on Aleph Alpha. Llama 3.1 405B Instruct is available on OctoAI API (Deprecated), Together AI, Fireworks AI, IBM watsonx, and Scale AI GenAI Platform. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Aleph Alpha Luminous Extended over Llama 3.1 405B Instruct?
Aleph Alpha Luminous Extended is ~5900% cheaper at $0.04/1M; pay for Llama 3.1 405B Instruct only for long-context analysis. If your workload also depends on provider fit, start with Aleph Alpha Luminous Extended; if it depends on long-context analysis, run the same evaluation with Llama 3.1 405B Instruct.
Continue comparing
Last reviewed: 2026-05-16. Data sourced from public model cards and provider documentation.