Composer 2.5 vs GLM 4.6V
Composer 2.5 (2026) and GLM 4.6V (2026) are agentic coding models from Cursor (Anysphere) and Tsinghua Knowledge Engineering Group (THUDM). Composer 2.5 ships a not-yet-sourced context window, while GLM 4.6V 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.
Composer 2.5 is safer overall; choose GLM 4.6V when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Composer 2.5 | GLM 4.6V |
|---|---|---|
| Decision fit | Coding, Agents, and JSON / Tool use | RAG, Agents, and Long context |
| Context window | — | 128K |
| Cheapest output | $2.5/1M tokens | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Composer 2.5 has broader tracked provider coverage for fallback and procurement flexibility.
- Composer 2.5 uniquely exposes Code execution in local model data.
- Local decision data tags Composer 2.5 for Coding, Agents, and JSON / Tool use.
- GLM 4.6V has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GLM 4.6V uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags GLM 4.6V for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Composer 2.5
$1,025
Cheapest tracked route: Cursor
GLM 4.6V
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Composer 2.5 and GLM 4.6V; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Code execution before moving production traffic.
- GLM 4.6V adds Vision and Multimodal in local capability data.
- No overlapping tracked provider route is sourced for GLM 4.6V and Composer 2.5; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Composer 2.5 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-18 | 2026-02-01 |
| Context window | — | 128K |
| Parameters | — | — |
| Architecture | - | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Composer 2.5 | GLM 4.6V |
|---|---|---|
| Input price | $0.5/1M tokens | - |
| Output price | $2.5/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Composer 2.5 | GLM 4.6V |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | No | No |
| Code execution | Yes | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: GLM 4.6V, multimodal input: GLM 4.6V, and code execution: Composer 2.5. 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: Composer 2.5 has $0.5/1M input tokens and GLM 4.6V has no token price sourced yet. Provider availability is 1 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Composer 2.5 when coding workflow support and broader provider choice are central to the workload. Choose GLM 4.6V when vision-heavy evaluation 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
Is Composer 2.5 or GLM 4.6V open source?
Composer 2.5 is listed under Proprietary. GLM 4.6V 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, Composer 2.5 or GLM 4.6V?
GLM 4.6V 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, Composer 2.5 or GLM 4.6V?
GLM 4.6V 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 function calling, Composer 2.5 or GLM 4.6V?
Both Composer 2.5 and GLM 4.6V expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for tool use, Composer 2.5 or GLM 4.6V?
Both Composer 2.5 and GLM 4.6V expose tool use. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Where can I run Composer 2.5 and GLM 4.6V?
Composer 2.5 is available on Cursor. GLM 4.6V is available on the tracked providers still being sourced. 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: 2026-05-19. Data sourced from public model cards and provider documentation.