Phi-3 Medium 128K vs Together AI Qwen2-7B-Instruct
Phi-3 Medium 128K (2024) and Together AI Qwen2-7B-Instruct (2024) are compact production models from Microsoft Research and Alibaba. Phi-3 Medium 128K ships a 128K-token context window, while Together AI Qwen2-7B-Instruct ships a 33K-token context window. On pricing, Together AI Qwen2-7B-Instruct costs $0.15/1M input tokens versus $0.5/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Together AI Qwen2-7B-Instruct is ~233% cheaper at $0.15/1M; pay for Phi-3 Medium 128K only for long-context analysis.
Specs
| Released | 2024-05-21 | 2024-06-07 |
| Context window | 128K | 33K |
| Parameters | 14B | 7B |
| Architecture | decoder only | decoder only |
| License | Open Source | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Phi-3 Medium 128K | Together AI Qwen2-7B-Instruct | |
|---|---|---|
| Input price | $0.5/1M tokens | $0.15/1M tokens |
| Output price | $1.5/1M tokens | $0.15/1M tokens |
| Providers |
Capabilities
| Phi-3 Medium 128K | Together AI Qwen2-7B-Instruct | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on structured outputs: Together AI Qwen2-7B-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, Phi-3 Medium 128K lists $0.5/1M input and $1.5/1M output tokens, while Together AI Qwen2-7B-Instruct lists $0.15/1M input and $0.15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Together AI Qwen2-7B-Instruct lower by about $0.65 per million blended tokens. Availability is 2 providers versus 1, so concentration risk also matters.
Choose Phi-3 Medium 128K when long-context analysis, larger context windows, and broader provider choice are central to the workload. Choose Together AI Qwen2-7B-Instruct when provider fit and lower input-token cost 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, Phi-3 Medium 128K or Together AI Qwen2-7B-Instruct?
Phi-3 Medium 128K supports 128K tokens, while Together AI Qwen2-7B-Instruct supports 33K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Phi-3 Medium 128K or Together AI Qwen2-7B-Instruct?
Together AI Qwen2-7B-Instruct is cheaper on tracked token pricing. Phi-3 Medium 128K costs $0.5/1M input and $1.5/1M output tokens. Together AI Qwen2-7B-Instruct costs $0.15/1M input and $0.15/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Phi-3 Medium 128K or Together AI Qwen2-7B-Instruct open source?
Phi-3 Medium 128K is listed under Open Source. Together AI Qwen2-7B-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, Phi-3 Medium 128K or Together AI Qwen2-7B-Instruct?
Together AI Qwen2-7B-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 Phi-3 Medium 128K and Together AI Qwen2-7B-Instruct?
Phi-3 Medium 128K is available on Microsoft Foundry and NVIDIA NIM. Together AI Qwen2-7B-Instruct is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Phi-3 Medium 128K over Together AI Qwen2-7B-Instruct?
Together AI Qwen2-7B-Instruct is ~233% cheaper at $0.15/1M; pay for Phi-3 Medium 128K only for long-context analysis. If your workload also depends on long-context analysis, start with Phi-3 Medium 128K; if it depends on provider fit, run the same evaluation with Together AI Qwen2-7B-Instruct.
Continue comparing
Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.