gpt-oss-120b vs Nova Premier 1.0 (Comparative Analysis)
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Comparative Analysis: gpt-oss-120b vs. Nova Premier 1.0
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Overview
gpt-oss-120b was released 2 months before Nova Premier 1.0.
 gpt-oss-120b |  Nova Premier 1.0 | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | Amazon |
Input Context Window Maximum input tokens this model can process at once | 131.1K tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 131.1K tokens | 32K tokens |
Release Date When this model first became publicly available | August 5, 2025 11 months ago August 5th, 2025 | October 31, 2025 8 months ago October 31st, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | June 30, 2024 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
gpt-oss-120b | Nova Premier 1.0 | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Always enabledEffort: High, Medium, LowDefault: Medium | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | Nova |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function CallingStructured OutputReasoning Mode✓Content Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
gpt-oss-120b is roughly 0.02x less expensive compared to Nova Premier 1.0 for input tokens and roughly 0.01x less expensive for output tokens.
| gpt-oss-120b | Nova Premier 1.0 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.04 per million tokens | $2.50 per million tokens |
Output Token Cost Cost per million output tokens | $0.17 per million tokens | $12.50 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | Not specified | $0.63 per million tokens |
Benchmarks
Compare relevant benchmarks between gpt-oss-120b and Nova Premier 1.0.
| gpt-oss-120b | Nova Premier 1.0 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 23.8 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 30.4 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 13.2 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,052 Elo (#90 in Game Dev (40.6% win rate)) | 862 Elo (#115 in Website (26.2% win rate)) |
At a Glance
Quick overview of what makes gpt-oss-120b and Nova Premier 1.0 unique.
gpt-oss-120b by OpenAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 131.1K token context window. Very affordable at $0.04/M input and $0.17/M output tokens. Released August 5th, 2025.Nova Premier 1.0 by Amazon understands both text and images, can use external tools and APIs. It can handle standard conversations with its 1M token context window. Reasonably priced at $2.50/M input and $12.50/M output tokens. Includes built-in content moderation for safer outputs. Released October 31st, 2025.Explore More Comparisons
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Technical analysis and explanations
🔬Science
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