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GPT-6 Astra vs Mistral Medium 3.5

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GPT-6 AstraMistral Medium 3.5
AttributeGPT-6 AstraOpenAI · 17 in the newsMistral Medium 3.5Mistral AI · 3 in the news
Scores
Intelligence (ECI)169141
Coding9519
Math96
Reasoning & Knowledge9918
Agentic & Tools9675
Specifications
DeveloperOpenAIMistral AI
FamilyGPTMistral
ReleasedSep 3, 2026Apr 28, 2026
Parameters
AvailabilityAPI accessOpen weights (restricted use)
Context window1.1M262K
Price — $/M input$10.00$1.50
Price — $/M output$50.00$7.50
Inputsfile, image, texttext, image, file
Outputstexttext
Benchmarks
AIME 2024/2025100%
APEX47%
ARC-AGI99%
ARC-AGI-295%
GPQA Diamond96%75%
Humanity's Last Exam55%14%
SciCode56%40%
SimpleQA Verified76%
WebDev Arena17971265
WeirdML93%44%
τ²-bench94%

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.