Antigravity Agent vs Qwen3.5-9B
Antigravity Agent (2026) and Qwen3.5-9B (2026) are frontier reasoning models from Google DeepMind and Alibaba. Antigravity Agent ships a 1.05m-token context window, while Qwen3.5-9B ships a 262k-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.
Antigravity Agent fits 4x more tokens; pick it for long-context work and Qwen3.5-9B for tighter calls.
Decision scorecard
Local evidence first| Signal | Antigravity Agent | Qwen3.5-9B |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | multimodal apps, tool-calling agents, and provider-routed production |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 1.05m | 262k |
| Cheapest output | - | $0.15/1M tokens |
| Provider routes | 1 tracked | 3 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Antigravity Agent has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Antigravity Agent uniquely exposes Reasoning and Code execution in local model data.
- Local decision data tags Antigravity Agent for Coding, RAG, and Agents.
- Qwen3.5-9B has broader tracked provider coverage for fallback and procurement flexibility.
- Qwen3.5-9B uniquely exposes Function calling and Structured outputs in local model data.
- Local decision data tags Qwen3.5-9B for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Antigravity Agent
Unavailable
No complete token price in local provider data
Qwen3.5-9B
$118
Cheapest tracked route/tier: Together AI
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Antigravity Agent and Qwen3.5-9B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning and Code execution before moving production traffic.
- Qwen3.5-9B adds Function calling and Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Qwen3.5-9B and Antigravity Agent; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling and Structured outputs before moving production traffic.
- Antigravity Agent adds Reasoning and Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-19 | 2026-03-02 |
| Context window | 1.05m | 262k |
| Parameters | — | 9B |
| Architecture | - | decoder only |
| License | Proprietary | Apache 2.0 |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Pricing attribute | Antigravity Agent | Qwen3.5-9B |
|---|---|---|
| Input price | - | $0.10/1M tokens |
| Output price | - | $0.15/1M tokens |
| Providers |
Capabilities
| Capability | Antigravity Agent | Qwen3.5-9B |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| Function calling | No | Yes |
| Tool use | Yes | Yes |
| Structured outputs | No | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on reasoning mode: Antigravity Agent, function calling: Qwen3.5-9B, structured outputs: Qwen3.5-9B, and code execution: Antigravity Agent. Both models share vision, multimodal input, 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: Antigravity Agent has no token price sourced yet and Qwen3.5-9B has $0.10/1M input tokens. Provider availability is 1 tracked routes versus 3. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Antigravity Agent when coding workflow support and larger context windows are central to the workload. Choose Qwen3.5-9B when vision-heavy evaluation 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.
FAQ
Which has a larger context window, Antigravity Agent or Qwen3.5-9B?
Antigravity Agent supports 1.05m tokens, while Qwen3.5-9B supports 262k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Is Antigravity Agent or Qwen3.5-9B open source?
Antigravity Agent is listed under Proprietary. Qwen3.5-9B 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 vision, Antigravity Agent or Qwen3.5-9B?
Both Antigravity Agent and Qwen3.5-9B expose vision. 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 multimodal input, Antigravity Agent or Qwen3.5-9B?
Both Antigravity Agent and Qwen3.5-9B expose multimodal input. 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 reasoning mode, Antigravity Agent or Qwen3.5-9B?
Antigravity Agent 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 Antigravity Agent and Qwen3.5-9B?
Antigravity Agent is available on Google AI Studio. Qwen3.5-9B is available on Together AI, OpenRouter, and Alibaba Cloud PAI-EAS. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-26. Data sourced from public model cards and provider documentation.