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GPT-6 Astra vs Nex-N2.5-Mini

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GPT-6 AstraNex-N2.5-Mini
AttributeGPT-6 AstraOpenAI · 25 in the newsNex-N2.5-MiniNex AGI
Scores
Intelligence (ECI)169
Coding94
Math95
Reasoning & Knowledge99
Agentic & Tools93
Specifications
DeveloperOpenAINex AGI
FamilyGPT
ReleasedSep 3, 2026Sep 8, 2026
Parameters
AvailabilityAPI access
Context window1.1M262K
Price — $/M input$10.00$0.03
Price — $/M output$50.00$0.10
Inputsfile, image, texttext, image
Outputstexttext
Benchmarks
AIME 2024/2025100%
APEX65%
ARC-AGI99%
ARC-AGI-295%
GPQA Diamond96%
Humanity's Last Exam55%
SciCode56%
SimpleQA Verified76%
WebDev Arena1800
WeirdML94%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.