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GPT-5.2-Codex vs Nemotron Nano 9B V2 (free)

Signal-by-Signal Comparison
SignalGPT-5.2-CodexDeltaNemotron Nano 9B V2 (free)
Capabilities
100
+33
67
Benchmarks
89
+89
0
Pricing
86
-14
100
Context window size
89
+8
81
Recency
95
+24
72
Output Capacity
85
+65
20
Overall Result
5 wins
of 6
1 wins
GPT-5.2-Codex wins 5 of 6 signals

Score History

Score History (25 data points)
GPT-5.2-CodexNemotron Nano 9B V2 (free)
GPT-5.2-Codex

90.5

current score

Leader

GPT-5.2-Codex

right now

Nemotron Nano 9B V2 (free)

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

GPT-5.2-Codex

OpenAI

Per request$0.008750
Daily$29.17
Monthly$875.00
Annual$10500.00

Nemotron Nano 9B V2 (free)

NVIDIA

Best Value
Per request$0.000000
Daily$0.00
Monthly$0.00
Annual$0.00

Nemotron Nano 9B V2 (free) saves you $875.00/month

That's $10500.00/year compared to GPT-5.2-Codex at your current usage level of 100K calls/month.

100% cheaper
Choose Nemotron Nano 9B V2 (free) for cost optimization

GPT-5.2-Codex pricing:
Input:$1.75/M tokens
Output:$14.00/M tokens
Nemotron Nano 9B V2 (free) pricing:
Input:$0.00/M tokens
Output:$0.00/M tokens
Winner
GPT-5.2-Codex

OpenAI

91

Composite Score

Nemotron Nano 9B V2 (free)

NVIDIA

40

Composite Score

Signal-by-Signal Comparison
MetricGPT-5.2-CodexNemotron Nano 9B V2 (free)Winner
Overall Score
91
40
GPT-5.2-Codex
Rank#24#320
GPT-5.2-Codex
Quality Rank#24#320
GPT-5.2-Codex
Adoption Rank#24#320
GPT-5.2-Codex
Parameters--9B--
Context Window400K128K
GPT-5.2-Codex
Pricing$1.75/$14.00/MFree--
Signal Scores
Capabilities
100
67
GPT-5.2-Codex
Benchmarks
89
--
GPT-5.2-Codex
Pricing
86
100
Nemotron Nano 9B V2 (free)
Context window size
89
81
GPT-5.2-Codex
Recency
95
72
GPT-5.2-Codex
Output Capacity
85
20
GPT-5.2-Codex
Benchmark Head-to-Head(11 benchmarks)
GPT-5.2-Codex: 0Nemotron Nano: 0
GPT-5.2-Codex
Nemotron Nano
Normalized 0-100%
MMLU
93.5%-
MMLU-Pro
86%-
GPQA Diamond
87%-
MATH-500
94%-
HumanEval
97%-
SWE-bench Verified
78%-
IFEval
93%-
BBH
91.5%-
Arena Elo
1481-
LiveBench
77.5%-
HLE
37%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

GPT-5.2-CodexElite Tier

Scores 91/100 (rank #24), placing it in the top 92% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Nemotron Nano 9B V2 (free)Entry Level

Scores 40/100 (rank #320), placing it in the top -10% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.2-Codex has a 51-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose GPT-5.2-Codex when you need:

  • Processing long documents or large codebases (400K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving

Choose Nemotron Nano 9B V2 (free) when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
GPT-5.2-Codex
Input cost$1.75/M tokens
Output cost$14.00/M tokens
Cost per quality point$0.174
Est. monthly (1M tokens/day)$236.25
Nemotron Nano 9B V2 (free)
Input cost$0.00/M tokens
Output cost$0.00/M tokens
Cost per quality point$0.000
Est. monthly (1M tokens/day)$0.00

Both models are priced similarly, so the decision comes down to quality and features rather than cost.

Latency & Speed
GPT-5.2-CodexFaster
Speed score0/100
Nemotron Nano 9B V2 (free)
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

GPT-5.2-Codex

Customer support chatbot

Suitable for user-facing chat with competitive response times. Nemotron Nano 9B V2 (free) also offers lower per-token costs for high-volume support

GPT-5.2-Codex

Long document analysis

Larger context window (400K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-5.2-Codex

Batch data extraction

Lower output pricing ($0.00/M) reduces costs when processing thousands of records daily

Nemotron Nano 9B V2 (free)

Creative writing & content

Higher overall composite score (91/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.2-Codex

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-5.2-Codex
Which Should You Choose?
Our recommendation:
GPT-5.2-Codex

GPT-5.2-Codex clearly outperforms Nemotron Nano 9B V2 (free) with a significant 50.5-point lead. For most general use cases, GPT-5.2-Codex is the stronger choice. However, Nemotron Nano 9B V2 (free) may still excel in niche scenarios.

GPT-5.2-Codex
Recommended

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by NVIDIA

  • Choose for Cost - 100% lower pricing; better value at scale
Capability Comparison
CapabilityGPT-5.2-CodexNemotron Nano 9B V2 (free)
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-5.2-Codex

OpenAI

$19.95
estimated monthly cost

Nemotron Nano 9B V2 (free)

NVIDIA

Best Value
$0.000000
estimated monthly cost

Nemotron Nano 9B V2 (free) saves you $19.95/month

That's 100% cheaper than GPT-5.2-Codex at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGPT-5.2-CodexNemotron Nano 9B V2 (free)
Context Window400K128K
Max Output Tokens128,000--
Open SourceNoYes
CreatedJan 14, 2026Sep 5, 2025
Last updated: 31m ago

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