gpt-5.1

1439 Score third-party Elo · arena.ai / LMArena ?

GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...

LLM & Generative AI 1 model 3 listings snapshot Oct 14, 2026, 12:43 AM

Platforms

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Cheapest OpenRouter official $1.25 -50.0% vs official Input$0.625 Output$5.00 per 1M tokens Fastest OpenRouter lowest p50 latency on this board 128.1 ms p50 Most free quota — largest published free allowance — free tier

Model variants

W3r9 dedup — same model + identical tags merge; prices are listed per billing form

Model	Provider	Tags	Input /1M	Output /1M
openai/gpt-5.1	OpenRouter	391k contextmultimodalreasoning	$1.25	$10.00
openai/gpt-5.1:batch :batch	OpenRouter	391k contextmultimodalreasoning	$0.625	$5.00
gpt-5.1	OpenAI	391k contextmultimodalreasoning	$1.25	$10.00

Capabilities

official design_arena & architecture metadata

Design Arena Elo official design_arena benchmark (OpenRouter)

dataviz 1206 · 58.0% wr
website 1189 · 54.0% wr
gamedev 1183 · 55.9% wr
codecategories 1173 · 53.0% wr
uicomponent 1168 · 52.9% wr
svg 1148 · 57.4% wr
asciiart 1121 · 48.6% wr
3d 1062 · 43.7% wr

Input / Output modalities modality: text+image+file->text

text in+out
image input only

Platform details

per provider

provider	model	Input /1M	Output /1M	Latency ?	Official $/1M	Availability	Data time
OpenAI Official	gpt-5.1	$1.25	$10.00	—	$1.25	—	2026-10-14 00:43:42
OpenRouter	openai/gpt-5.1-codex	$1.25	$10.00	128.1 ms	—	100% available	2026-10-14 00:43:21

2 rows · snapshot 2026-10-14 00:43:42 · from data/public/prices.json + measurements.json