Grok Code Fast 1 vs Qwen3.6-Plus
Grok Code Fast 1 (2025) and Qwen3.6-Plus (2026) are agentic coding models from xAI and Alibaba. Grok Code Fast 1 ships a 262K-token context window, while Qwen3.6-Plus ships a 1M-token context window. On SWE-bench Verified, Qwen3.6-Plus leads by 8 pts. On pricing, Grok Code Fast 1 costs $0.2/1M input tokens versus $0.33/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Grok Code Fast 1 is ~63% cheaper at $0.2/1M; pay for Qwen3.6-Plus only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Grok Code Fast 1 | Qwen3.6-Plus |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 262K | 1M |
| Cheapest output | $1.5/1M tokens | $1.95/1M tokens |
| Provider routes | 1 tracked | 2 tracked |
| Shared benchmarks | 1 rows | SWE-bench Verified leader |
Decision tradeoffs
- Grok Code Fast 1 has the lower cheapest tracked output price at $1.5/1M tokens.
- Grok Code Fast 1 uniquely exposes Structured outputs in local model data.
- Local decision data tags Grok Code Fast 1 for Coding, RAG, and Agents.
- Qwen3.6-Plus leads the largest shared benchmark signal on SWE-bench Verified by 8 points.
- Qwen3.6-Plus has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Qwen3.6-Plus has broader tracked provider coverage for fallback and procurement flexibility.
- Qwen3.6-Plus uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags Qwen3.6-Plus for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Grok Code Fast 1
$535
Cheapest tracked route: OpenRouter
Qwen3.6-Plus
$748
Cheapest tracked route: Alibaba Cloud PAI-EAS
Estimated monthly gap: $213. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Qwen3.6-Plus is $0.45/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- Qwen3.6-Plus adds Vision and Multimodal in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Grok Code Fast 1 is $0.45/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Grok Code Fast 1 adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-08-27 | 2026-04-01 |
| Context window | 262K | 1M |
| Parameters | 314B | — |
| Architecture | mixture of experts | dense |
| License | Proprietary | Proprietary |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Grok Code Fast 1 | Qwen3.6-Plus |
|---|---|---|
| Input price | $0.2/1M tokens | $0.33/1M tokens |
| Output price | $1.5/1M tokens | $1.95/1M tokens |
| Providers |
Capabilities
| Capability | Grok Code Fast 1 | Qwen3.6-Plus |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | No |
| Code execution | No | No |
Benchmarks
| Benchmark | Grok Code Fast 1 | Qwen3.6-Plus |
|---|---|---|
| SWE-bench Verified | 70.8 | 78.8 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has Grok Code Fast 1 at 70.8 and Qwen3.6-Plus at 78.8, with Qwen3.6-Plus ahead by 8 points. The largest visible gap is 8 points on SWE-bench Verified, 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: Qwen3.6-Plus, multimodal input: Qwen3.6-Plus, and structured outputs: Grok Code Fast 1. 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.
For cost, Grok Code Fast 1 lists $0.2/1M input and $1.5/1M output tokens, while Qwen3.6-Plus lists $0.33/1M input and $1.95/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Grok Code Fast 1 lower by about $0.22 per million blended tokens. Availability is 1 providers versus 2, so concentration risk also matters.
Choose Grok Code Fast 1 when coding workflow support and lower input-token cost are central to the workload. Choose Qwen3.6-Plus when coding workflow support, larger context windows, 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, Grok Code Fast 1 or Qwen3.6-Plus?
Qwen3.6-Plus supports 1M tokens, while Grok Code Fast 1 supports 262K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Grok Code Fast 1 or Qwen3.6-Plus?
Grok Code Fast 1 is cheaper on tracked token pricing. Grok Code Fast 1 costs $0.2/1M input and $1.5/1M output tokens. Qwen3.6-Plus costs $0.33/1M input and $1.95/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Grok Code Fast 1 or Qwen3.6-Plus open source?
Grok Code Fast 1 is listed under Proprietary. Qwen3.6-Plus is listed under Proprietary. 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, Grok Code Fast 1 or Qwen3.6-Plus?
Qwen3.6-Plus 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, Grok Code Fast 1 or Qwen3.6-Plus?
Qwen3.6-Plus 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 Grok Code Fast 1 and Qwen3.6-Plus?
Grok Code Fast 1 is available on OpenRouter. Qwen3.6-Plus is available on OpenRouter and Alibaba Cloud PAI-EAS. Provider coverage can affect latency, region availability, compliance posture, and fallback options. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Continue comparing
Last reviewed: 2026-05-13. Data sourced from public model cards and provider documentation.