Model comparison
GPT-5 nano vs Nova Pro
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-5 nano #139 (Estimated); Nova Pro #196 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5 nano and Nova Pro share 0 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to GPT-5 nano; 12 to Nova Pro.
Updated July 24, 2026- Shared results
- 0
- GPT-5 nano only
- 0
- Nova Pro only
- 12
- Comparable categories
- 0 / 8
Benchmark data for GPT-5 nano and Nova Pro is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM does not have sourced benchmark coverage for GPT-5 nano yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5 nano has the larger context window at 400K, compared with 128K for Nova Pro.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5 nano | Nova Pro | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5 nano$0.05 input / $0.4 output | Nova ProNot available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-5 nano137 tok/s | Nova Pro141 tok/s | Nova Pro has the higher measured throughput. |
| First-answer latencyseconds to first token | GPT-5 nano83.30 s | Nova Pro0.81 s | Nova Pro reaches the first token sooner. |
| Context windowmaximum listed tokens | GPT-5 nano400K | Nova Pro128K | GPT-5 nano lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | GPT-5 nano | Nova Pro | Result |
|---|---|---|---|
| τ²-bench resultsSource | — | 14% | Not comparable |
Coding1 benchmarks
| Benchmark | GPT-5 nano | Nova Pro | Result |
|---|---|---|---|
| AA-SciCodeSource | — | 20.8% | Not comparable |
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | GPT-5 nano | Nova Pro | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | — | 7.7% | Not comparable |
| AA-GPQA DiamondSource | — | 49.9% | Not comparable |
| AA-HLESource | — | 3.4% | Not comparable |
| AA-Omniscience IndexSource | — | -47.6% | Not comparable |
| AA-Omniscience AccuracySource | — | 17.0% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 77.9% | Not comparable |
Multimodal1 benchmarks
| Benchmark | GPT-5 nano | Nova Pro | Result |
|---|---|---|---|
| AA-MMMU-ProSource | — | 44.3% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | GPT-5 nano | Nova Pro | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 38.1% | Not comparable |
Frequently Asked Questions (3)
Can I compare GPT-5 nano and Nova Pro on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for GPT-5 nano and Nova Pro today?
GPT-5 nano: $0.05 input / $0.40 output per 1M tokens Nova Pro: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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