Antigravity Agent vs Nemotron 3 Ultra
Antigravity Agent (2026) and Nemotron 3 Ultra (2026) are frontier-tier reasoning models from Google DeepMind and NVIDIA AI. Antigravity Agent ships a 1.05m-token context window, while Nemotron 3 Ultra ships a 1m-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
Nemotron 3 Ultra is safer overall; choose Antigravity Agent when coding workflow support matters.
Decision scorecard
Local evidence first| Signal | Antigravity Agent | Nemotron 3 Ultra |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps and long-context analysis |
| Decision fit | Coding, RAG, and Agents | Long context |
| Context window | 1.05m | 1m |
| Cheapest output | - | $2.20/1M tokens |
| Provider routes | 1 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Antigravity Agent has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Antigravity Agent uniquely exposes Vision, Multimodal, and Tool use in local model data.
- Local decision data tags Antigravity Agent for Coding, RAG, and Agents.
- Local decision data tags Nemotron 3 Ultra for 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
Nemotron 3 Ultra
$950
Cheapest tracked route/tier: OpenRouter
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 Nemotron 3 Ultra; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Tool use before moving production traffic.
- No overlapping tracked provider route is sourced for Nemotron 3 Ultra and Antigravity Agent; plan for SDK, billing, or endpoint changes.
- Antigravity Agent adds Vision, Multimodal, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-19 | 2026-06-04 |
| Context window | 1.05m | 1m |
| Parameters | — | 550B |
| Architecture | - | Mixture of Experts |
| License | Proprietary | NVIDIA Open Model |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2025-01 | - |
Pricing and availability
| Pricing attribute | Antigravity Agent | Nemotron 3 Ultra |
|---|---|---|
| Input price | - | $0.50/1M tokens |
| Output price | - | $2.20/1M tokens |
| Providers |
Capabilities
| Capability | Antigravity Agent | Nemotron 3 Ultra |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | Yes |
| Function calling | No | No |
| Tool use | Yes | No |
| Structured outputs | No | No |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Deep dive
The capability footprint differs most on vision: Antigravity Agent, multimodal input: Antigravity Agent, tool use: Antigravity Agent, and code execution: Antigravity Agent. Both models share reasoning mode, 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 Nemotron 3 Ultra has $0.50/1M input tokens. Provider availability is 1 tracked routes versus 1. 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 Nemotron 3 Ultra 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. 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, Antigravity Agent or Nemotron 3 Ultra?
Antigravity Agent supports 1.05m tokens, while Nemotron 3 Ultra supports 1m tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Antigravity Agent or Nemotron 3 Ultra open source?
Antigravity Agent is listed under Proprietary. Nemotron 3 Ultra is listed under NVIDIA Open Model. 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 Nemotron 3 Ultra?
Antigravity Agent 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, Antigravity Agent or Nemotron 3 Ultra?
Antigravity Agent 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 reasoning mode, Antigravity Agent or Nemotron 3 Ultra?
Both Antigravity Agent and Nemotron 3 Ultra expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Antigravity Agent and Nemotron 3 Ultra?
Antigravity Agent is available on Google AI Studio. Nemotron 3 Ultra is available on OpenRouter. 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: 2026-06-15. Data sourced from public model cards and provider documentation.