Head-to-Head Model Comparison

GPT-5 nano vs GPT-5 Chat

Benchmarks, API Token Pricing, Context Window & Speed Comparison

Revisado pela equipe de pesquisa do GetInfoUsÚltima revisão: October 2026Política editorial
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AI CompareAI BenchmarkToken PricingModel CostModel SpecsSWE-bench CodingModel VersusWhich AI ModelLLM Speed & LatencyReasoning ModelsExtended ThinkingPrompt Caching ROI
GPT-5 nano vs GPT-5 Chat: Benchmarks, Pricing & Speed Comparison

GPT-5 nano da OpenAI e GPT-5 Chat da OpenAI são dois modelos de IA de destaque. O GPT-5 nano oferece uma janela de contexto de 400K tokens a $0.05/$0.40 por milhão de tokens, enquanto o GPT-5 Chat oferece 128K tokens de contexto a $0.00/$0.00 por milhão de tokens. Veja abaixo a comparação completa de benchmarks, latência e custos.

Comparação Direta (VS)

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OpenAI

GPT-5 nano

Modelo Leve e Econômico

O GPT-5 nano da OpenAI é um modelo de IA projetado para máxima economia por token e alto desempenho em escala de produção, oferecendo janela de contexto de 400K, velocidade de 250 tokens/s, índice de inteligência de 35/100 e tarifa de $0.05

Intelligence Index35 / 100
Input Token:

$0.05 / 1M

Output Token:

$0.40 / 1M

Context Window:

400K tokens

SWE-bench Verified:

34.5%

OpenAI

GPT-5 Chat

Modelo Principal de Fronteira

O GPT-5 Chat da OpenAI é um modelo de IA projetado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, oferecendo janela de contexto de 128K, velocidade de 140 tokens/s, índice de inteligência de 56/100 e ta

Intelligence Index56 / 100
Input Token:

$0.00 / 1M

Output Token:

$0.00 / 1M

Context Window:

128K tokens

SWE-bench Verified:

70%

Principais Diferenças em Resumo

  • GPT-5 Chat is 1.0x cheaper for API usage (input + output tokens combined).
  • GPT-5 nano has a larger context window (400K vs 128K tokens).
  • GPT-5 nano is faster at 250 tok/s vs 140 tok/s.
  • GPT-5 Chat leads on SWE-bench coding (70.0% vs 34.5%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureGPT-5 nanoGPT-5 Chat
Intelligence Index
Composite reasoning & knowledge score (0-100)
3556
Provider
OpenAIOpenAI
Input Price
Cost per million input tokens
$0.05 / 1M$0.00 / 1M
Output Price
Cost per million output tokens
$0.40 / 1M$0.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.05 / 1M$0.00 / 1M
Context Window
Maximum input + output tokens
400K tokens~600 A4 pages of text128K tokens~192 A4 pages of text
Max Output Tokens
Per single request
128K16K
Throughput Speed
Tokens generated per second
250 tok/s140 tok/s
SWE-bench Verified
Real-world software engineering
34.5%70%
GPQA Diamond
Graduate-level reasoning
48%79%
Cached Input Price
Prompt caching discount per 1M tokens
$0.01 / 1M$0.00 / 1M

Quem vence em cada categoria?

At-a-glance decision framework
Coding
GPT-5 Chat
+35.5% SWE-bench lead
Cost
GPT-5 Chat
1.0x cheaper monthly runtime
Speed
GPT-5 nano
+79% faster generation
Context
GPT-5 nano
400K tokens window

Pontuações de Benchmarks Verificadas

Official evaluation metrics verified by independent third-party research labs.

GPT-5 nanoGPT-5 Chat
SWE-bench Verified (Autonomous Coding)

Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.

34.5%vs70%
GPQA Diamond (Doctorate-Level Science & Math)

Challenging questions created by domain experts to test complex PhD-level reasoning.

48%vs79%
MMLU-Pro (Multi-task Language Understanding)

Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.

66.5%vs85%
LMSYS Chatbot Arena Elo

Crowdsourced human preference evaluation based on blind, head-to-head model battles.

1250ptsvs1358pts
Humanity's Last Exam (Frontier Expert Knowledge)

Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.

6%vs11.6%
Terminal-Bench (Agentic Coding & Terminal Use)

Autonomous multi-step tasks executed inside a real command-line terminal environment.

18.5%vs42.5%
SciCode (Scientific Computing)

Research-grade coding problems drawn from real scientific and numerical workloads.

22%vs40%
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

37.5%vs68%
AIME (Advanced Math Competition)

American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.

62%vs88%
Long-Context Reasoning

Accuracy when reasoning over very large inputs that fill the model context window.

57%vs76%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

250 tok/s vs140 tok/s

Latência e Tempo de Resposta

Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.

Time to First Token (TTFT)Lower is better
GPT-5 nano0.38s
GPT-5 Chat1.05s
Est. End-to-End Response (500 tokens)TTFT + generation time
GPT-5 nano2.38s
GPT-5 Chat4.62s

Simulador Interativo de Custo de Tokens

Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.

100K / day
10K500K1M
30K / day
5K150K300K
50% cached
0% (Cold)50%90% (Warm)
GPT-5 nano Monthly API Bill
$0.44 / month
$0.05/1M in · $0.4/1M out
GPT-5 Chat Monthly API Bill
$0.00 / month
$0/1M in · $0/1M out
GPT-5 Chat saves approximately $0.44 / month (100%) under this workload.1.0x Savings

GPT-5 nano · Strengths & Key Advantages

  • Janela de contexto de 400K com limite máximo de saída de 128K tokens (SWE-bench Verified 34.5% · GPQA Diamond 48%)
  • Taxa de transferência rápida de 250 tokens/segundo com latência inicial (TTFT) de 380 ms
  • Economia de API competitiva ($0.05/$0.4 por 1M de tokens) com suporte a cache de prompts e saídas JSON estruturadas
Considerations & Trade-offs
  • Modelo proprietário em nuvem; não permite download dos pesos para execução local offline
  • Em derivações científicas extremas, modelos pesados dedicados exclusivamente ao raciocínio oferecem maior profundidade

GPT-5 Chat · Strengths & Key Advantages

  • Janela de contexto de 128K com limite máximo de saída de 16K tokens (SWE-bench Verified 70% · GPQA Diamond 79%)
  • Taxa de transferência rápida de 140 tokens/segundo com latência inicial (TTFT) de 1050 ms
  • Economia de API competitiva (acesso gratuito de pesos abertos) com suporte a cache de prompts e saídas JSON estruturadas
Considerations & Trade-offs
  • Modelo proprietário em nuvem; não permite download dos pesos para execução local offline
  • Em derivações científicas extremas, modelos pesados dedicados exclusivamente ao raciocínio oferecem maior profundidade

Token Use & Task Economics

Estimated cost and token consumption to complete one representative agentic task.

MetricGPT-5 nanoGPT-5 Chat
Cost per Task
Estimated USD to finish one task
$0.06$1.50
Output Tokens / Task
Tokens generated per task
42K54K
Reasoning Tokens / Task
Thinking tokens burned per task
18K28K

Especificações Técnicas

Architecture, release timeline, capabilities, and modalities.

FeatureGPT-5 nanoGPT-5 Chat
Official API Model ID (SDK)gpt-5-nanogpt-5-chat
API ProtocolOpenAI Responses API & Chat Completions v1OpenAI Responses API & Chat Completions v1
Release Date2025-082025-08
Knowledge CutoffSeptember 2024September 2024
ArchitectureNano unified reasoning modelChat-tuned unified reasoning model
ParametersConfidentialConfidential
Enterprise Rate Limits (RPM / TPM)10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM
Long-Context Tier (>128K/200K)Flat rate ($0.05/1M in) across full 400K windowFree across full context window (only KV-cache VRAM scales)
Prompt Cache Policy & TTLAutomatic prefix caching at $0.005/1M (no extra cache-write fee)Automatic prefix KV-caching in vLLM / SGLang (0 cost)
Computer Use / GUI AgentSupported (Screen coordinate grounding, browser & desktop GUI action loops)Supported (Screen coordinate grounding, browser & desktop GUI action loops)
MCP & Parallel Tool CallingNative MCP Client/Server ready · Parallel function calling · 100% Strict JSON SchemaNative MCP Client/Server ready · Parallel function calling
Web Search Grounding & SandboxNative Web Search tool + Hosted Code Interpreter & File Search RAGNative Web Search tool + Hosted Code Interpreter & File Search RAG
Official Fine-Tuning SupportSupervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)Supervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)
Multimodal Token BillingText BPE (~4 chars/token) · Vision (~258–765 tokens per image tile)Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile)
Quantization & Min GPU VRAMCloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)
Safety & Frontier ClassificationOpenAI Preparedness Framework Audited & System Card PublishedOpenAI Preparedness Framework Audited & System Card Published
Enterprise Compliance (ZDR/HIPAA/SOC2)SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise TierSOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Input Modalitiestext, visiontext, vision
Output Modalitiestexttext

GPT-5 nano vs GPT-5 Chat: Respostas Rápidas (FAQ)

Which is more intelligent, GPT-5 nano or GPT-5 Chat?

GPT-5 Chat is more intelligent. It scores 56 compared with 35 on the composite Intelligence Index.

Which model is faster?

GPT-5 nano is faster, generating 250 tokens per second compared with 140 tokens per second.

Which model is cheaper to run?

GPT-5 Chat is cheaper at $0.00 per 1M tokens blended, compared with $0.05 (7:2:1 cache:input:output ratio).

Which model has lower latency?

GPT-5 nano has lower latency, with a time to first token of 0.38s compared with 1.05s.

Which model has a larger context window?

GPT-5 nano has a larger context window, supporting 400K tokens compared with 128K tokens.

Veredito

Tanto GPT-5 nano (Indicado para máxima economia por token e alto desempenho em escala de produção, arquiteturas RAG corporativas e integração escalável via API.) quanto GPT-5 Chat (Indicado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, arquiteturas RAG corporativas e integração escalável via API.) entregam excelente desempenho: GPT-5 Chat lidera em inteligência geral e programação, GPT-5 nano oferece geração mais rápida e GPT-5 Chat apresenta o melhor custo-benefício em produção.

Perguntas Frequentes (FAQ)

Qual é melhor para programação e raciocínio, GPT-5 nano ou GPT-5 Chat?+

Nas avaliações de inteligência e código, GPT-5 Chat leva vantagem. Confira os gráficos SWE-bench e GPQA acima para detalhes.

Qual modelo tem a API mais barata, GPT-5 nano ou GPT-5 Chat?+

O GPT-5 nano custa $0.05 / $0.40 por 1M de tokens (entrada/saída) e o GPT-5 Chat custa $0.00 / $0.00. No custo combinado, GPT-5 Chat é mais econômico.

Qual modelo possui maior janela de contexto e velocidade?+

O GPT-5 nano suporta 400K tokens de contexto contra 128K tokens do GPT-5 Chat, enquanto GPT-5 nano entrega maior velocidade de geração.

AI Terminology & Guide
Explore Glossary →

Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.

Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.

Fontes oficiais: Documentação oficial de API da OpenAI e OpenAI e benchmarks independentes (2026).