Qwen3.5-27B vs Together AI Deepseek-LLM-67B-Chat
Qwen3.5-27B (2026) and Together AI Deepseek-LLM-67B-Chat (2024) are frontier reasoning models from Alibaba and DeepSeek. Qwen3.5-27B ships a 262K-token context window, while Together AI Deepseek-LLM-67B-Chat ships a 4K-token context window. On pricing, Qwen3.5-27B costs $0.2/1M input tokens versus $0.6/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Qwen3.5-27B is ~208% cheaper at $0.2/1M; pay for Together AI Deepseek-LLM-67B-Chat only for provider fit.
Decision scorecard
Local evidence first| Signal | Qwen3.5-27B | Together AI Deepseek-LLM-67B-Chat |
|---|---|---|
| Decision fit | RAG, Agents, and Long context | Classification and JSON / Tool use |
| Context window | 262K | 4K |
| Cheapest output | $1.56/1M tokens | $0.6/1M tokens |
| Provider routes | 3 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Qwen3.5-27B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Qwen3.5-27B has broader tracked provider coverage for fallback and procurement flexibility.
- Qwen3.5-27B uniquely exposes Vision, Multimodal, and Reasoning in local model data.
- Local decision data tags Qwen3.5-27B for RAG, Agents, and Long context.
- Together AI Deepseek-LLM-67B-Chat has the lower cheapest tracked output price at $0.6/1M tokens.
- Local decision data tags Together AI Deepseek-LLM-67B-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.
Qwen3.5-27B
$546
Cheapest tracked route: OpenRouter
Together AI Deepseek-LLM-67B-Chat
$630
Cheapest tracked route: Together AI
Estimated monthly gap: $84.00. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Qwen3.5-27B and Together AI Deepseek-LLM-67B-Chat; plan for SDK, billing, or endpoint changes.
- Together AI Deepseek-LLM-67B-Chat is $0.96/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
- No overlapping tracked provider route is sourced for Together AI Deepseek-LLM-67B-Chat and Qwen3.5-27B; plan for SDK, billing, or endpoint changes.
- Qwen3.5-27B is $0.96/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Qwen3.5-27B adds Vision, Multimodal, and Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-02-24 | 2024-01-09 |
| Context window | 262K | 4K |
| Parameters | 27B | 67B |
| Architecture | decoder only | decoder only |
| License | Apache 2.0 | Open Source |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Qwen3.5-27B | Together AI Deepseek-LLM-67B-Chat |
|---|---|---|
| Input price | $0.2/1M tokens | $0.6/1M tokens |
| Output price | $1.56/1M tokens | $0.6/1M tokens |
| Providers |
Capabilities
| Capability | Qwen3.5-27B | Together AI Deepseek-LLM-67B-Chat |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | 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 vision: Qwen3.5-27B, multimodal input: Qwen3.5-27B, reasoning mode: Qwen3.5-27B, function calling: Qwen3.5-27B, and tool use: Qwen3.5-27B. 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, Qwen3.5-27B lists $0.2/1M input and $1.56/1M output tokens, while Together AI Deepseek-LLM-67B-Chat lists $0.6/1M input and $0.6/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Together AI Deepseek-LLM-67B-Chat lower by about $0 per million blended tokens. Availability is 3 providers versus 1, so concentration risk also matters.
Choose Qwen3.5-27B when reasoning depth, larger context windows, and lower input-token cost are central to the workload. Choose Together AI Deepseek-LLM-67B-Chat when provider fit 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, Qwen3.5-27B or Together AI Deepseek-LLM-67B-Chat?
Qwen3.5-27B supports 262K tokens, while Together AI Deepseek-LLM-67B-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, Qwen3.5-27B or Together AI Deepseek-LLM-67B-Chat?
Qwen3.5-27B is cheaper on tracked token pricing. Qwen3.5-27B costs $0.2/1M input and $1.56/1M output tokens. Together AI Deepseek-LLM-67B-Chat costs $0.6/1M input and $0.6/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Qwen3.5-27B or Together AI Deepseek-LLM-67B-Chat open source?
Qwen3.5-27B is listed under Apache 2.0. Together AI Deepseek-LLM-67B-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 vision, Qwen3.5-27B or Together AI Deepseek-LLM-67B-Chat?
Qwen3.5-27B 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. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Qwen3.5-27B or Together AI Deepseek-LLM-67B-Chat?
Qwen3.5-27B 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.
Where can I run Qwen3.5-27B and Together AI Deepseek-LLM-67B-Chat?
Qwen3.5-27B is available on DeepInfra, OpenRouter, and Alibaba Cloud PAI-EAS. Together AI Deepseek-LLM-67B-Chat is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-14. Data sourced from public model cards and provider documentation.