GPT-4 Turbo Preview vs Nemotron 4 340B
GPT-4 Turbo Preview (2023) and Nemotron 4 340B (2025) are compact production models from OpenAI and NVIDIA AI. GPT-4 Turbo Preview ships a 128k-token context window, while Nemotron 4 340B ships a 4k-token context window. On pricing, Nemotron 4 340B costs $4.20/1M input tokens versus $10/1M 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 4 340B is ~138% cheaper at $4.20/1M; pay for GPT-4 Turbo Preview only for coding workflow support.
Decision scorecard
Local evidence first| Signal | GPT-4 Turbo Preview | Nemotron 4 340B |
|---|---|---|
| Best for | multimodal apps and provider-routed production | provider-routed production |
| Decision fit | Coding, RAG, and Agents | Classification and JSON / Tool use |
| Context window | 128k | 4k |
| Cheapest output | $30/1M tokens | $4.20/1M tokens |
| Provider routes | 3 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- GPT-4 Turbo Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GPT-4 Turbo Preview has broader tracked provider coverage for fallback and procurement flexibility.
- GPT-4 Turbo Preview uniquely exposes Vision and Code execution in local model data.
- Local decision data tags GPT-4 Turbo Preview for Coding, RAG, and Agents.
- Nemotron 4 340B has the lower cheapest tracked output price at $4.20/1M tokens.
- Local decision data tags Nemotron 4 340B for Classification and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-4 Turbo Preview
$15,500
Cheapest tracked route/tier: OpenAI API
Nemotron 4 340B
$4,410
Cheapest tracked route/tier: DeepInfra
Estimated monthly gap: $11,090. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for GPT-4 Turbo Preview and Nemotron 4 340B; plan for SDK, billing, or endpoint changes.
- Nemotron 4 340B is $25.80/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision and Code execution before moving production traffic.
- No overlapping tracked provider route is sourced for Nemotron 4 340B and GPT-4 Turbo Preview; plan for SDK, billing, or endpoint changes.
- GPT-4 Turbo Preview is $25.80/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- GPT-4 Turbo Preview adds Vision and Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2023-11-06 | 2025-02-27 |
| Context window | 128k | 4k |
| Parameters | 1.76T (8x222B MoE)* | 340B |
| Architecture | mixture of experts | decoder only |
| License | Proprietary | NVIDIA Open Model |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use with conditions | Commercial use allowed |
| Knowledge cutoff | 2023-12 | - |
Pricing and availability
| Pricing attribute | GPT-4 Turbo Preview | Nemotron 4 340B |
|---|---|---|
| Input price | $10/1M tokens | $4.20/1M tokens |
| Output price | $30/1M tokens | $4.20/1M tokens |
| Providers |
Capabilities
| Capability | GPT-4 Turbo Preview | Nemotron 4 340B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | 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 vision: GPT-4 Turbo Preview and code execution: GPT-4 Turbo Preview. Both models share structured outputs, 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.
For cost, GPT-4 Turbo Preview lists $10/1M input and $30/1M output tokens on the cheapest tracked provider, while Nemotron 4 340B lists $4.20/1M input and $4.20/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Nemotron 4 340B lower by about $11.80 per million blended tokens. Availability is 3 providers versus 2, so concentration risk also matters.
Choose GPT-4 Turbo Preview when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Nemotron 4 340B when provider fit 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.
FAQ
Which has a larger context window, GPT-4 Turbo Preview or Nemotron 4 340B?
GPT-4 Turbo Preview supports 128k tokens, while Nemotron 4 340B supports 4k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, GPT-4 Turbo Preview or Nemotron 4 340B?
Nemotron 4 340B is cheaper on tracked token pricing. GPT-4 Turbo Preview costs $10/1M input and $30/1M output tokens. Nemotron 4 340B costs $4.20/1M input and $4.20/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is GPT-4 Turbo Preview or Nemotron 4 340B open source?
GPT-4 Turbo Preview is listed under Proprietary. Nemotron 4 340B 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, GPT-4 Turbo Preview or Nemotron 4 340B?
GPT-4 Turbo Preview 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.
Which is better for structured outputs, GPT-4 Turbo Preview or Nemotron 4 340B?
Both GPT-4 Turbo Preview and Nemotron 4 340B expose structured outputs. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run GPT-4 Turbo Preview and Nemotron 4 340B?
GPT-4 Turbo Preview is available on OpenAI API, Azure OpenAI, and OpenRouter. Nemotron 4 340B is available on NVIDIA NIM and DeepInfra. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-19. Data sourced from public model cards and provider documentation.