Together AI - Llama 3 8B Lite vs Nemotron 3 Ultra
Together AI - Llama 3 8B Lite (2025) and Nemotron 3 Ultra (2026) are frontier reasoning models from AI at Meta and NVIDIA AI. Together AI - Llama 3 8B Lite ships a 8k-token context window, while Nemotron 3 Ultra ships a 1m-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Nemotron 3 Ultra fits 122x more tokens; pick it for long-context work and Together AI - Llama 3 8B Lite for tighter calls.
Decision scorecard
Local evidence first| Signal | Together AI - Llama 3 8B Lite | Nemotron 3 Ultra |
|---|---|---|
| Best for | tool-calling agents | reasoning-heavy apps and long-context analysis |
| Decision fit | Agents, Classification, and JSON / Tool use | Long context |
| Context window | 8k | 1m |
| Cheapest output | $0.10/1M tokens | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Together AI - Llama 3 8B Lite has broader tracked provider coverage for fallback and procurement flexibility.
- Together AI - Llama 3 8B Lite uniquely exposes Function calling, Tool use, and Structured outputs in local model data.
- Local decision data tags Together AI - Llama 3 8B Lite for Agents, Classification, and JSON / Tool use.
- Nemotron 3 Ultra has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Ultra uniquely exposes Reasoning in local model data.
- Local decision data tags Nemotron 3 Ultra for Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Together AI - Llama 3 8B Lite
$105
Cheapest tracked route/tier: Together AI
Nemotron 3 Ultra
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Together AI - Llama 3 8B Lite and Nemotron 3 Ultra; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling, Tool use, and Structured outputs before moving production traffic.
- Nemotron 3 Ultra adds Reasoning in local capability data.
- No overlapping tracked provider route is sourced for Nemotron 3 Ultra and Together AI - Llama 3 8B Lite; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning before moving production traffic.
- Together AI - Llama 3 8B Lite adds Function calling, Tool use, and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-07-15 | 2026-06-04 |
| Context window | 8k | 1m |
| Parameters | 8B | 550B |
| Architecture | decoder only | moe |
| License | Llama 3 Community | NVIDIA Open Model |
| Openness | Open weights | Open weights |
| Commercial use | Commercial use with conditions | Commercial use allowed |
| Knowledge cutoff | 2024-03 | - |
Pricing and availability
| Pricing attribute | Together AI - Llama 3 8B Lite | Nemotron 3 Ultra |
|---|---|---|
| Input price | $0.10/1M tokens | - |
| Output price | $0.10/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Together AI - Llama 3 8B Lite | Nemotron 3 Ultra |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on reasoning mode: Nemotron 3 Ultra, function calling: Together AI - Llama 3 8B Lite, tool use: Together AI - Llama 3 8B Lite, and structured outputs: Together AI - Llama 3 8B Lite. 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.
Pricing coverage is uneven: Together AI - Llama 3 8B Lite has $0.10/1M input tokens and Nemotron 3 Ultra has no token price sourced yet. Provider availability is 1 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Together AI - Llama 3 8B Lite when provider fit and broader provider choice are central to the workload. Choose Nemotron 3 Ultra when reasoning depth and larger context windows are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Together AI - Llama 3 8B Lite or Nemotron 3 Ultra?
Nemotron 3 Ultra supports 1m tokens, while Together AI - Llama 3 8B Lite supports 8k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Together AI - Llama 3 8B Lite or Nemotron 3 Ultra open source?
Together AI - Llama 3 8B Lite is listed under Llama 3 Community. Nemotron 3 Ultra is listed under NVIDIA Open Model. 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 reasoning mode, Together AI - Llama 3 8B Lite or Nemotron 3 Ultra?
Nemotron 3 Ultra has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for function calling, Together AI - Llama 3 8B Lite or Nemotron 3 Ultra?
Together AI - Llama 3 8B Lite has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for tool use, Together AI - Llama 3 8B Lite or Nemotron 3 Ultra?
Together AI - Llama 3 8B Lite has the clearer documented tool use signal in this comparison. If tool use is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Together AI - Llama 3 8B Lite and Nemotron 3 Ultra?
Together AI - Llama 3 8B Lite is available on Together AI. Nemotron 3 Ultra is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-09. Data sourced from public model cards and provider documentation.