Models
Price comparison

gpt-5.1

gpt-5.1 by OpenAI: 9 offers. From €0.56 per 1M input tokens, with EU processing from €1.12.

Calculate costs for this modelCompare offersView price history

Profile

Profile
DeveloperOpenAI
TypeLanguage models
OriginUS
Input typestext+bild
Context (tokens)400,000
Max. output (tokens)128,000
Reasoningmit
Parameters (bn)–
Open weights– no
Licenceproprietär
Released–

Offers with processing in the EU (5)

ProviderCountryVariantInputOutputSourceAs of
Azure OpenAIUSglobal€1.12€8.94azure.microsoft.com13 Oct 2026
Azure OpenAIUSdatazone€1.23€9.83azure.microsoft.com13 Oct 2026
cortecsATstandard€1.23€9.84api.cortecs.ai14 Oct 2026
Azure OpenAIUSglobal-priority-processing€2.23€17.88azure.microsoft.com13 Oct 2026
Azure OpenAIUSdatazone-priority-processing€2.46€19.66azure.microsoft.com13 Oct 2026

€ per 1M tokens. Source: providers' pricing pages, read and checked by searchit. As of 14 Oct 2026.

Offers outside the EU (4)

ProviderCountryVariantInputOutputSourceAs of
OpenAIUSbatch€0.56€4.47developers.openai.com12 Oct 2026
OpenAIUSflex€0.56€4.47developers.openai.com12 Oct 2026
OpenAIUSstandard€1.12€8.94developers.openai.com12 Oct 2026
OpenAIUSfast€2.23€17.88developers.openai.com12 Oct 2026

€ per 1M tokens. Source: providers' pricing pages, read and checked by searchit. As of 14 Oct 2026.

AI Act

Whether the developer has signed the Code of Practice for general-purpose AI models: unknown. What this means is explained under “EU and AI Act”. EU processing and AI Act

Benchmarks

Benchmarks
GPQA Diamond (Artificial Analysis)87.3
Humanity's Last Exam (Artificial Analysis)28.5
ARC-AGI-2 (ARC Prize Foundation)17.64
OTIS Mock AIME 2024-2025 (Epoch AI)88.6
SimpleQA Verified (Epoch AI)48
SWE-bench Verified (Epoch AI)68
Vectara HHEM-2.312.1
Vectara HHEM-2.3 – antwortrate100
Vectara HHEM-2.3 – halluzination12.1

Report an error on this page