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OpenAI: GPT-5 Nano
Server-rendered model summary page for indexing/share previews. Use the interactive explorer for full filtering and comparison.
Match confidence: Name matchSource type: both
Context window
400K
Arena overall rank
—
Input price
$0.000 / 1M
Output price
$0.000 / 1M
Identifiers & provenance
- Primary ID
- openai/gpt-5-nano
- OpenRouter ID
- openai/gpt-5-nano
- Arena ID
- gpt-5-nano
- Canonical slug
- openai/gpt-5-nano-2025-08-07
- Match method
- openrouter_name
- Match key
- gpt-5-nano
Source semantics
- Arena rank is a human-preference leaderboard signal, not a universal truth metric.
- OpenRouter usage/popularity reflects adoption/traffic, not benchmark quality.
- Pricing fields may differ by provider and can include extra modes beyond prompt/completion.
Read more on Methodology & data sources.
Description
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.
Raw fields snapshot
{
"id": "openai/gpt-5-nano",
"name": "OpenAI: GPT-5 Nano",
"description": "GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.",
"created": 1754587402,
"canonical_slug": "openai/gpt-5-nano-2025-08-07",
"hugging_face_id": "",
"source_type": "both",
"context_length": 400000,
"max_completion_tokens": 128000,
"is_moderated": true,
"architecture": {
"modality": "text+image+file->text",
"input_modalities": [
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"image",
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],
"output_modalities": [
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],
"tokenizer": "GPT",
"instruct_type": null
},
"input_modalities": [
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"image",
"file"
],
"output_modalities": [
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],
"modality": "text+image+file->text",
"tokenizer": "GPT",
"instruct_type": null,
"supported_parameters": [
"include_reasoning",
"max_tokens",
"reasoning",
"response_format",
"seed",
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"tool_choice",
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],
"default_parameters": {},
"per_request_limits": null,
"top_provider": {
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"max_completion_tokens": 128000,
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"pricing": {
"prompt": "0.00000005",
"completion": "0.0000004",
"web_search": "0.01",
"input_cache_read": "0.000000005"
},
"PPM": {
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"completion": 0.4,
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"input_cache_read": 0.005
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"openrouter_raw": {
"id": "openai/gpt-5-nano",
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"default_parameters": {},
"expiration_date": null
},
"categories": {
"text-expert": {
"score": 1356,
"rank_ub": 118,
"votes": 317,
"ci_95": "±34"
},
"text-industry-software-and-it-services": {
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"rank_ub": 139,
"votes": 2899,
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},
"text-industry-writing-and-literature-and-language": {
"score": 1291,
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},
"text-overall": {
"score": 1338,
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},
"text-industry-life-and-physical-and-social-science": {
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"rank_ub": 148,
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"ci_95": "±17"
},
"text-industry-mathematical": {
"score": 1356,
"rank_ub": 122,
"votes": 439,
"ci_95": "±29"
},
"text-industry-entertainment-and-sports-and-media": {
"score": 1280,
"rank_ub": 167,
"votes": 1367,
"ci_95": "±16"
},
"text-industry-business-and-management-and-financial-operations": {
"score": 1333,
"rank_ub": 137,
"votes": 1538,
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},
"text-industry-medicine-and-healthcare": {
"score": 1363,
"rank_ub": 125,
"votes": 479,
"ci_95": "±28"
},
"text-industry-legal-and-government": {
"score": 1330,
"rank_ub": 164,
"votes": 487,
"ci_95": "±27"
},
"text-instruction-following": {
"score": 1325,
"rank_ub": 134,
"votes": 2047,
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},
"text-math": {
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"text-creative-writing": {
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"text-multi-turn": {
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"text-hard-prompts": {
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},
"text-coding": {
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},
"text-hard-prompts-english": {
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"text-longer-query": {
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},
"text-english": {
"score": 1346,
"rank_ub": 154,
"votes": 4054,
"ci_95": "±9"
},
"text-chinese": {
"score": 1378,
"rank_ub": 109,
"votes": 384,
"ci_95": "±30"
},
"text-spanish": {
"score": 1387,
"rank_ub": 69,
"votes": 208,
"ci_95": "±43"
},
"text-russian": {
"score": 1313,
"rank_ub": 148,
"votes": 493,
"ci_95": "±26"
},
"text-german": {
"score": 1350,
"rank_ub": 87,
"votes": 204,
"ci_95": "±41"
},
"text-korean": {
"score": 1275,
"rank_ub": 106,
"votes": 217,
"ci_95": "±43"
},
"text-exclude-ties": {
"score": 1294,
"rank_ub": 138,
"votes": 6049,
"ci_95": "±10"
},
"vision-overall": {
"score": 1146,
"rank_ub": 56,
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},
"vision-english": {
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"rank_ub": 50,
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},
"vision-diagram": {
"score": 1157,
"rank_ub": 46,
"votes": 531,
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},
"vision-humor": {
"score": 1097,
"rank_ub": 32,
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},
"vision-homework": {
"score": 1179,
"rank_ub": 39,
"votes": 294,
"ci_95": "±33"
},
"vision-ocr": {
"score": 1163,
"rank_ub": 44,
"votes": 1756,
"ci_95": "±15"
}
},
"arena_model_id": "gpt-5-nano",
"leaderboard_name": "gpt-5-nano-high",
"match_method": "openrouter_name",
"match_key": "gpt-5-nano",
"match_input": "OpenAI: GPT-5 Nano",
"arena_aliases": []
}