Kimi K2 Turbo Preview vs Qwen3-235B-A22B
Kimi K2 Turbo Preview (2025) and Qwen3-235B-A22B (2025) are compact production models from Moonshot AI and Alibaba. Kimi K2 Turbo Preview ships a 262K-token context window, while Qwen3-235B-A22B ships a 128K-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.
Kimi K2 Turbo Preview is safer overall; choose Qwen3-235B-A22B when provider fit matters.
Decision scorecard
Local evidence first| Signal | Kimi K2 Turbo Preview | Qwen3-235B-A22B |
|---|---|---|
| Decision fit | RAG, Agents, and Long context | Coding, RAG, and Long context |
| Context window | 262K | 128K |
| Cheapest output | - | $1.2/1M tokens |
| Provider routes | 0 tracked | 4 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Kimi K2 Turbo Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Kimi K2 Turbo Preview uniquely exposes Function calling in local model data.
- Local decision data tags Kimi K2 Turbo Preview for RAG, Agents, and Long context.
- Qwen3-235B-A22B has broader tracked provider coverage for fallback and procurement flexibility.
- Qwen3-235B-A22B uniquely exposes Structured outputs in local model data.
- Local decision data tags Qwen3-235B-A22B for Coding, RAG, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Kimi K2 Turbo Preview
Unavailable
No complete token price in local provider data
Qwen3-235B-A22B
$620
Cheapest tracked route: AWS Bedrock
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Kimi K2 Turbo Preview and Qwen3-235B-A22B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling before moving production traffic.
- Qwen3-235B-A22B adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Qwen3-235B-A22B and Kimi K2 Turbo Preview; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs before moving production traffic.
- Kimi K2 Turbo Preview adds Function calling in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-08-01 | 2025-01-01 |
| Context window | 262K | 128K |
| Parameters | 1K | 235B |
| Architecture | - | decoder only |
| License | Proprietary | Apache 2.0 |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Kimi K2 Turbo Preview | Qwen3-235B-A22B |
|---|---|---|
| Input price | - | $0.4/1M tokens |
| Output price | - | $1.2/1M tokens |
| Providers | - |
Capabilities
| Capability | Kimi K2 Turbo Preview | Qwen3-235B-A22B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | Yes | No |
| Tool use | No | No |
| Structured outputs | No | Yes |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on function calling: Kimi K2 Turbo Preview and structured outputs: Qwen3-235B-A22B. 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: Kimi K2 Turbo Preview has no token price sourced yet and Qwen3-235B-A22B has $0.4/1M input tokens. Provider availability is 0 tracked routes versus 4. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Kimi K2 Turbo Preview when long-context analysis and larger context windows are central to the workload. Choose Qwen3-235B-A22B 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, Kimi K2 Turbo Preview or Qwen3-235B-A22B?
Kimi K2 Turbo Preview supports 262K tokens, while Qwen3-235B-A22B supports 128K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Kimi K2 Turbo Preview or Qwen3-235B-A22B open source?
Kimi K2 Turbo Preview is listed under Proprietary. Qwen3-235B-A22B is listed under Apache 2.0. 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 function calling, Kimi K2 Turbo Preview or Qwen3-235B-A22B?
Kimi K2 Turbo Preview has the clearer documented function calling signal in this comparison. If function calling 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, Kimi K2 Turbo Preview or Qwen3-235B-A22B?
Qwen3-235B-A22B 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 Kimi K2 Turbo Preview and Qwen3-235B-A22B?
Kimi K2 Turbo Preview is available on the tracked providers still being sourced. Qwen3-235B-A22B is available on Fireworks AI, AWS Bedrock, OpenRouter, and Venice AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Kimi K2 Turbo Preview over Qwen3-235B-A22B?
Kimi K2 Turbo Preview is safer overall; choose Qwen3-235B-A22B when provider fit matters. If your workload also depends on long-context analysis, start with Kimi K2 Turbo Preview; if it depends on provider fit, run the same evaluation with Qwen3-235B-A22B.
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Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.