Claude Opus 4.6 vs Qwen2.5-72B
Claude Opus 4.6 (2026) and Qwen2.5-72B (2025) are frontier reasoning models from Anthropic and Alibaba. Claude Opus 4.6 ships a 1M-token context window, while Qwen2.5-72B ships a 128k-token context window. On MMLU PRO, Claude Opus 4.6 leads by 17.1 pts. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Claude Opus 4.6 fits 8x more tokens; pick it for long-context work and Qwen2.5-72B for tighter calls.
Specs
| Released | 2026-02-05 | 2025-10-10 |
| Context window | 1M | 128k |
| Parameters | — | 72B |
| Architecture | decoder only | - |
| License | Proprietary | Open Source |
| Knowledge cutoff | 2025-12 | 2024-09 |
Pricing and availability
| Claude Opus 4.6 | Qwen2.5-72B | |
|---|---|---|
| Input price | $5/1M tokens | - |
| Output price | $25/1M tokens | - |
| Providers | - |
Capabilities
| Claude Opus 4.6 | Qwen2.5-72B | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
| Benchmark | Claude Opus 4.6 | Qwen2.5-72B |
|---|---|---|
| MMLU PRO | 89.1 | 72.0 |
Deep dive
On shared benchmark coverage, MMLU PRO has Claude Opus 4.6 at 89.1 and Qwen2.5-72B at 72, with Claude Opus 4.6 ahead by 17.1 points. The largest visible gap is 17.1 points on MMLU PRO, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on vision: Claude Opus 4.6, multimodal input: Claude Opus 4.6, reasoning mode: Claude Opus 4.6, structured outputs: Claude Opus 4.6, and code execution: Claude Opus 4.6. Both models share function calling and tool use, 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: Claude Opus 4.6 has $5/1M input tokens and Qwen2.5-72B has no token price sourced yet. Provider availability is 4 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Claude Opus 4.6 when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Qwen2.5-72B when provider fit 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, Claude Opus 4.6 or Qwen2.5-72B?
Claude Opus 4.6 supports 1M tokens, while Qwen2.5-72B supports 128k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Claude Opus 4.6 or Qwen2.5-72B open source?
Claude Opus 4.6 is listed under Proprietary. Qwen2.5-72B 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 vision, Claude Opus 4.6 or Qwen2.5-72B?
Claude Opus 4.6 has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Claude Opus 4.6 or Qwen2.5-72B?
Claude Opus 4.6 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 reasoning mode, Claude Opus 4.6 or Qwen2.5-72B?
Claude Opus 4.6 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.
Where can I run Claude Opus 4.6 and Qwen2.5-72B?
Claude Opus 4.6 is available on OpenRouter, Anthropic, AWS Bedrock, and GCP Vertex AI. Qwen2.5-72B is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.