Grok 4 Heavy vs Together AI Qwen2-72B-Instruct
Grok 4 Heavy (2025) and Together AI Qwen2-72B-Instruct (2024) are compact production models from xAI and Alibaba. Grok 4 Heavy ships a 256k-token context window, while Together AI Qwen2-72B-Instruct ships a 33K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Grok 4 Heavy fits 8x more tokens; pick it for long-context work and Together AI Qwen2-72B-Instruct for tighter calls.
Specs
| Released | 2025-07-09 | 2024-06-07 |
| Context window | 256k | 33K |
| Parameters | — | 72B |
| Architecture | - | decoder only |
| License | Proprietary | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Grok 4 Heavy | Together AI Qwen2-72B-Instruct | |
|---|---|---|
| Input price | - | $0.7/1M tokens |
| Output price | - | $0.7/1M tokens |
| Providers | - |
Capabilities
| Grok 4 Heavy | Together AI Qwen2-72B-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 multimodal input: Grok 4 Heavy and structured outputs: Together AI Qwen2-72B-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.
Pricing coverage is uneven: Grok 4 Heavy has no token price sourced yet and Together AI Qwen2-72B-Instruct has $0.7/1M input tokens. Provider availability is 0 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Grok 4 Heavy when long-context analysis and larger context windows are central to the workload. Choose Together AI Qwen2-72B-Instruct when provider fit 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. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Which has a larger context window, Grok 4 Heavy or Together AI Qwen2-72B-Instruct?
Grok 4 Heavy supports 256k tokens, while Together AI Qwen2-72B-Instruct supports 33K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Grok 4 Heavy or Together AI Qwen2-72B-Instruct open source?
Grok 4 Heavy is listed under Proprietary. Together AI Qwen2-72B-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 multimodal input, Grok 4 Heavy or Together AI Qwen2-72B-Instruct?
Grok 4 Heavy has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for structured outputs, Grok 4 Heavy or Together AI Qwen2-72B-Instruct?
Together AI Qwen2-72B-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 Grok 4 Heavy and Together AI Qwen2-72B-Instruct?
Grok 4 Heavy is available on the tracked providers still being sourced. Together AI Qwen2-72B-Instruct is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Grok 4 Heavy over Together AI Qwen2-72B-Instruct?
Grok 4 Heavy fits 8x more tokens; pick it for long-context work and Together AI Qwen2-72B-Instruct for tighter calls. If your workload also depends on long-context analysis, start with Grok 4 Heavy; if it depends on provider fit, run the same evaluation with Together AI Qwen2-72B-Instruct.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.