GPT-2 Medium vs Nemotron 3 Ultra
GPT-2 Medium (2019) and Nemotron 3 Ultra (2026) are frontier reasoning models from OpenAI and NVIDIA AI. GPT-2 Medium ships a 1k-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 fits 1000x more tokens; pick it for long-context work and GPT-2 Medium for tighter calls.
Decision scorecard
Local evidence first| Signal | GPT-2 Medium | Nemotron 3 Ultra |
|---|---|---|
| Best for | general production evaluation | reasoning-heavy apps and long-context analysis |
| Decision fit | General | Long context |
| Context window | 1k | 1m |
| Cheapest output | - | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- GPT-2 Medium has broader tracked provider coverage for fallback and procurement flexibility.
- Nemotron 3 Ultra has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Nemotron 3 Ultra uniquely exposes Reasoning in local model data.
- 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.
GPT-2 Medium
Unavailable
No complete token price in local provider data
Nemotron 3 Ultra
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 GPT-2 Medium and Nemotron 3 Ultra; plan for SDK, billing, or endpoint changes.
- Nemotron 3 Ultra adds Reasoning in local capability data.
- No overlapping tracked provider route is sourced for Nemotron 3 Ultra and GPT-2 Medium; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2019-02-14 | 2026-06-04 |
| Context window | 1k | 1m |
| Parameters | 355M | 550B |
| Architecture | decoder only | moe |
| License | MIT(OSI) | NVIDIA Open Model |
| Openness | Open source | Open weights |
| Commercial use | Commercial use allowed | Commercial use allowed |
| Knowledge cutoff | 2017-12 | - |
Pricing and availability
| Pricing attribute | GPT-2 Medium | Nemotron 3 Ultra |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | GPT-2 Medium | Nemotron 3 Ultra |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | No |
| Code execution | No | 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: Nemotron 3 Ultra. 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: GPT-2 Medium has no token price sourced yet and Nemotron 3 Ultra 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 GPT-2 Medium when provider fit and broader provider choice are central to the workload. Choose Nemotron 3 Ultra when reasoning depth and larger context windows 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, GPT-2 Medium or Nemotron 3 Ultra?
Nemotron 3 Ultra supports 1m tokens, while GPT-2 Medium supports 1k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is GPT-2 Medium or Nemotron 3 Ultra open source?
GPT-2 Medium is listed under MIT. 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 reasoning mode, GPT-2 Medium or Nemotron 3 Ultra?
Nemotron 3 Ultra 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 GPT-2 Medium and Nemotron 3 Ultra?
GPT-2 Medium is available on Azure OpenAI. Nemotron 3 Ultra is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick GPT-2 Medium over Nemotron 3 Ultra?
Nemotron 3 Ultra fits 1000x more tokens; pick it for long-context work and GPT-2 Medium for tighter calls. If your workload also depends on provider fit, start with GPT-2 Medium; if it depends on reasoning depth, run the same evaluation with Nemotron 3 Ultra.
Continue comparing
Last reviewed: 2026-06-09. Data sourced from public model cards and provider documentation.