Together AI - Llama 3 8B Lite vs Llama 2 7B Chat
Together AI - Llama 3 8B Lite (2025) and Llama 2 7B Chat (2023) are compact production models from AI at Meta. Together AI - Llama 3 8B Lite ships a 8K-token context window, while Llama 2 7B Chat ships a 4K-token context window. On pricing, Llama 2 7B Chat costs $0.05/1M input tokens versus $0.1/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Llama 2 7B Chat is ~100% cheaper at $0.05/1M; pay for Together AI - Llama 3 8B Lite only for long-context analysis.
Decision scorecard
Local evidence first| Signal | Together AI - Llama 3 8B Lite | Llama 2 7B Chat |
|---|---|---|
| Decision fit | Agents, Classification, and JSON / Tool use | Classification and JSON / Tool use |
| Context window | 8K | 4K |
| Cheapest output | $0.1/1M tokens | $0.25/1M tokens |
| Provider routes | 1 tracked | 10 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Together AI - Llama 3 8B Lite has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Together AI - Llama 3 8B Lite has the lower cheapest tracked output price at $0.1/1M tokens.
- Together AI - Llama 3 8B Lite uniquely exposes Function calling and Tool use in local model data.
- Local decision data tags Together AI - Llama 3 8B Lite for Agents, Classification, and JSON / Tool use.
- Llama 2 7B Chat has broader tracked provider coverage for fallback and procurement flexibility.
- Local decision data tags Llama 2 7B Chat for Classification and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Together AI - Llama 3 8B Lite
$105
Cheapest tracked route: Together AI
Llama 2 7B Chat
$103
Cheapest tracked route: Replicate API
Estimated monthly gap: $2.50. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on Together AI; start route-level A/B tests there.
- Llama 2 7B Chat is $0.15/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Function calling and Tool use before moving production traffic.
- Provider overlap exists on Together AI; start route-level A/B tests there.
- Together AI - Llama 3 8B Lite is $0.15/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Together AI - Llama 3 8B Lite adds Function calling and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-07-15 | 2023-07-18 |
| Context window | 8K | 4K |
| Parameters | 8B | 7B |
| Architecture | decoder only | decoder only |
| License | Open Source | Open Source |
| Knowledge cutoff | 2024-03 | 2022-09 |
Pricing and availability
| Pricing attribute | Together AI - Llama 3 8B Lite | Llama 2 7B Chat |
|---|---|---|
| Input price | $0.1/1M tokens | $0.05/1M tokens |
| Output price | $0.1/1M tokens | $0.25/1M tokens |
| Providers |
Capabilities
| Capability | Together AI - Llama 3 8B Lite | Llama 2 7B Chat |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on function calling: Together AI - Llama 3 8B Lite and tool use: Together AI - Llama 3 8B Lite. Both models share structured outputs, 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, Together AI - Llama 3 8B Lite lists $0.1/1M input and $0.1/1M output tokens, while Llama 2 7B Chat lists $0.05/1M input and $0.25/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Together AI - Llama 3 8B Lite lower by about $0.01 per million blended tokens. Availability is 1 providers versus 10, so concentration risk also matters.
Choose Together AI - Llama 3 8B Lite when long-context analysis and larger context windows are central to the workload. Choose Llama 2 7B Chat when provider fit, lower input-token cost, 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.
FAQ
Which has a larger context window, Together AI - Llama 3 8B Lite or Llama 2 7B Chat?
Together AI - Llama 3 8B Lite supports 8K tokens, while Llama 2 7B Chat supports 4K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Together AI - Llama 3 8B Lite or Llama 2 7B Chat?
Llama 2 7B Chat is cheaper on tracked token pricing. Together AI - Llama 3 8B Lite costs $0.1/1M input and $0.1/1M output tokens. Llama 2 7B Chat costs $0.05/1M input and $0.25/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Together AI - Llama 3 8B Lite or Llama 2 7B Chat open source?
Together AI - Llama 3 8B Lite is listed under Open Source. Llama 2 7B Chat 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 function calling, Together AI - Llama 3 8B Lite or Llama 2 7B Chat?
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 Llama 2 7B Chat?
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 Llama 2 7B Chat?
Together AI - Llama 3 8B Lite is available on Together AI. Llama 2 7B Chat is available on Alibaba Cloud PAI-EAS, Baseten API, Fireworks AI, Microsoft Foundry, and GCP Vertex AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-19. Data sourced from public model cards and provider documentation.