Gemini 3.1 Flash TTS Preview vs Nemotron 3 Super-120B-A12B
Gemini 3.1 Flash TTS Preview (2026) and Nemotron 3 Super-120B-A12B (2026) are compact production models from Google DeepMind and NVIDIA AI. Gemini 3.1 Flash TTS Preview ships a 16k-token context window, while Nemotron 3 Super-120B-A12B ships a 1.05m-token context window. On pricing, Nemotron 3 Super-120B-A12B costs $0.09/1M input tokens versus $1/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Nemotron 3 Super-120B-A12B is ~1011% cheaper at $0.09/1M; pay for Gemini 3.1 Flash TTS Preview only for provider fit.
Decision scorecard
Local evidence first| Signal | Gemini 3.1 Flash TTS Preview | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Best for | general production evaluation | long-context analysis and provider-routed production |
| Decision fit | General | Coding, RAG, and Agents |
| Context window | 16k | 1.05m |
| Cheapest output | - | $0.45/1M tokens |
| Provider routes | 1 tracked | 6 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Use Gemini 3.1 Flash TTS Preview when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- Nemotron 3 Super-120B-A12B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Super-120B-A12B has broader tracked provider coverage for fallback and procurement flexibility.
- Nemotron 3 Super-120B-A12B uniquely exposes Structured outputs in local model data.
- Local decision data tags Nemotron 3 Super-120B-A12B for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini 3.1 Flash TTS Preview
Unavailable
Cheapest tracked route/tier: Google AI Studio
Nemotron 3 Super-120B-A12B
$185
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 Gemini 3.1 Flash TTS Preview and Nemotron 3 Super-120B-A12B; plan for SDK, billing, or endpoint changes.
- Nemotron 3 Super-120B-A12B adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Nemotron 3 Super-120B-A12B and Gemini 3.1 Flash TTS Preview; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-15 | 2026-03-11 |
| Context window | 16k | 1.05m |
| Parameters | — | 120B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | NVIDIA Open Model |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Gemini 3.1 Flash TTS Preview | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Input price | $1/1M tokens | $0.09/1M tokens |
| Output price | - | $0.45/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 3.1 Flash TTS Preview | Nemotron 3 Super-120B-A12B |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | Yes |
| Code execution | No | 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 structured outputs: Nemotron 3 Super-120B-A12B. 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: Gemini 3.1 Flash TTS Preview has $1/1M input tokens and Nemotron 3 Super-120B-A12B has $0.09/1M input tokens. Provider availability is 1 tracked routes versus 6. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Gemini 3.1 Flash TTS Preview when provider fit are central to the workload. Choose Nemotron 3 Super-120B-A12B when long-context analysis, larger context windows, and lower input-token cost 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, Gemini 3.1 Flash TTS Preview or Nemotron 3 Super-120B-A12B?
Nemotron 3 Super-120B-A12B supports 1.05m tokens, while Gemini 3.1 Flash TTS Preview supports 16k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Gemini 3.1 Flash TTS Preview or Nemotron 3 Super-120B-A12B open source?
Gemini 3.1 Flash TTS Preview is listed under Proprietary. Nemotron 3 Super-120B-A12B 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 structured outputs, Gemini 3.1 Flash TTS Preview or Nemotron 3 Super-120B-A12B?
Nemotron 3 Super-120B-A12B 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 Gemini 3.1 Flash TTS Preview and Nemotron 3 Super-120B-A12B?
Gemini 3.1 Flash TTS Preview is available on Google AI Studio. Nemotron 3 Super-120B-A12B is available on Cloudflare Workers AI, DeepInfra, NVIDIA NIM, OpenRouter, and Fireworks AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Gemini 3.1 Flash TTS Preview over Nemotron 3 Super-120B-A12B?
Nemotron 3 Super-120B-A12B is ~1011% cheaper at $0.09/1M; pay for Gemini 3.1 Flash TTS Preview only for provider fit. If your workload also depends on provider fit, start with Gemini 3.1 Flash TTS Preview; if it depends on long-context analysis, run the same evaluation with Nemotron 3 Super-120B-A12B.
Continue comparing
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.