Head-to-Head Model Comparison

GPT-5.6 Luna vs GPT-5.5 Instant

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-5.6 Luna vs GPT-5.5 Instant: Benchmarks, Pricing & Speed Comparison

GPT-5.6 Luna da OpenAI e GPT-5.5 Instant da OpenAI são dois modelos de IA de destaque. O GPT-5.6 Luna oferece uma janela de contexto de 1.05M tokens a $0.20/$1.20 por milhão de tokens, enquanto o GPT-5.5 Instant oferece 400K tokens de contexto a $0.75/$6.00 por milhão de tokens. Veja abaixo a comparação completa de benchmarks, latência e custos.

Comparação Direta (VS)

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OpenAI

GPT-5.6 Luna

Modelo Leve e Econômico

O GPT-5.6 Luna 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 1.1M, velocidade de 230 tokens/s, índice de inteligência de 57/100 e tarifa de $0.

Intelligence Index57 / 100
Input Token:

$0.20 / 1M

Output Token:

$1.20 / 1M

Context Window:

1.05M tokens

SWE-bench Verified:

63.5%

OpenAI

GPT-5.5 Instant

Modelo Leve e Econômico

O GPT-5.5 Instant 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 168 tokens/s, índice de inteligência de 65/100 e tarifa de

Intelligence Index65 / 100
Input Token:

$0.75 / 1M

Output Token:

$6.00 / 1M

Context Window:

400K tokens

SWE-bench Verified:

74.5%

Principais Diferenças em Resumo

  • GPT-5.6 Luna is 4.7x cheaper for API usage (input + output tokens combined).
  • GPT-5.6 Luna has a larger context window (1M vs 400K tokens).
  • GPT-5.6 Luna is faster at 230 tok/s vs 168 tok/s.
  • GPT-5.5 Instant leads on SWE-bench coding (74.5% vs 63.5%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureGPT-5.6 LunaGPT-5.5 Instant
Intelligence Index
Composite reasoning & knowledge score (0-100)
5765
Provider
OpenAIOpenAI
Input Price
Cost per million input tokens
$0.20 / 1M$0.75 / 1M
Output Price
Cost per million output tokens
$1.20 / 1M$6.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.17 / 1M$0.80 / 1M
Context Window
Maximum input + output tokens
1.05M tokens~1,575 A4 pages of text400K tokens~600 A4 pages of text
Max Output Tokens
Per single request
128K128K
Throughput Speed
Tokens generated per second
230 tok/s168 tok/s
SWE-bench Verified
Real-world software engineering
63.5%74.5%
GPQA Diamond
Graduate-level reasoning
70.5%75%
Cached Input Price
Prompt caching discount per 1M tokens
$0.02 / 1M$0.07 / 1M

Quem vence em cada categoria?

At-a-glance decision framework
Coding
GPT-5.5 Instant
+11.0% SWE-bench lead
Cost
GPT-5.6 Luna
4.7x cheaper monthly runtime
Speed
GPT-5.6 Luna
+37% faster generation
Context
GPT-5.6 Luna
1.05M tokens window

Pontuações de Benchmarks Verificadas

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

GPT-5.6 LunaGPT-5.5 Instant
SWE-bench Verified (Autonomous Coding)

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

63.5%vs74.5%
GPQA Diamond (Doctorate-Level Science & Math)

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

70.5%vs75%
MMLU-Pro (Multi-task Language Understanding)

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

83.5%vs87.2%
LMSYS Chatbot Arena Elo

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

1368ptsvs1396pts
Humanity's Last Exam (Frontier Expert Knowledge)

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

11.4%vs13.6%
Terminal-Bench (Agentic Coding & Terminal Use)

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

38.5%vs49%
SciCode (Scientific Computing)

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

36%vs45.5%
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

62.5%vs73.5%
AIME (Advanced Math Competition)

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

87%vs92.4%
Long-Context Reasoning

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

76.5%vs81.5%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

230 tok/s vs168 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-5.6 Luna0.42s
GPT-5.5 Instant0.78s
Est. End-to-End Response (500 tokens)TTFT + generation time
GPT-5.6 Luna2.59s
GPT-5.5 Instant3.76s

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-5.6 Luna Monthly API Bill
$1.41 / month
$0.2/1M in · $1.2/1M out
GPT-5.5 Instant Monthly API Bill
$6.64 / month
$0.75/1M in · $6/1M out
GPT-5.6 Luna saves approximately $5.23 / month (79%) under this workload.4.7x Savings

GPT-5.6 Luna · Strengths & Key Advantages

  • Janela de contexto de 1.1M com limite máximo de saída de 128K tokens (SWE-bench Verified 63.5% · GPQA Diamond 70.5%)
  • Taxa de transferência rápida de 230 tokens/segundo com latência inicial (TTFT) de 420 ms
  • Economia de API competitiva ($0.2/$1.2 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-5.5 Instant · Strengths & Key Advantages

  • Janela de contexto de 400K com limite máximo de saída de 128K tokens (SWE-bench Verified 74.5% · GPQA Diamond 75%)
  • Taxa de transferência rápida de 168 tokens/segundo com latência inicial (TTFT) de 780 ms
  • Economia de API competitiva ($0.75/$6 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

Token Use & Task Economics

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

MetricGPT-5.6 LunaGPT-5.5 Instant
Cost per Task
Estimated USD to finish one task
$0.19$0.95
Output Tokens / Task
Tokens generated per task
46K52K
Reasoning Tokens / Task
Thinking tokens burned per task
20K26K

Especificações Técnicas

Architecture, release timeline, capabilities, and modalities.

FeatureGPT-5.6 LunaGPT-5.5 Instant
Official API Model ID (SDK)gpt-5-6-lunagpt-5-5-instant
API ProtocolOpenAI Responses API & Chat Completions v1OpenAI Responses API & Chat Completions v1
Release Date2026-072026-05
Knowledge CutoffFebruary 2026December 2025
ArchitectureEfficient compact reasoning modelLow-latency compact reasoning model
ParametersConfidentialConfidential
Enterprise Rate Limits (RPM / TPM)10,000 – 30,000 RPM (Tier 5 Enterprise) · 4,000,000 – 10,000,000 TPM10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM
Long-Context Tier (>128K/200K)Flat rate ($0.2/1M in) across full 1050K windowFlat rate ($0.75/1M in) across full 400K window
Prompt Cache Policy & TTLAutomatic prefix caching at $0.02/1M (no extra cache-write fee)Automatic prefix caching at $0.075/1M (no extra cache-write fee)
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 · 100% Strict JSON Schema
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-5.6 Luna vs GPT-5.5 Instant: Respostas Rápidas (FAQ)

Which is more intelligent, GPT-5.6 Luna or GPT-5.5 Instant?

GPT-5.5 Instant is more intelligent. It scores 65 compared with 57 on the composite Intelligence Index.

Which model is faster?

GPT-5.6 Luna is faster, generating 230 tokens per second compared with 168 tokens per second.

Which model is cheaper to run?

GPT-5.6 Luna is cheaper at $0.17 per 1M tokens blended, compared with $0.80 (7:2:1 cache:input:output ratio).

Which model has lower latency?

GPT-5.6 Luna has lower latency, with a time to first token of 0.42s compared with 0.78s.

Which model has a larger context window?

GPT-5.6 Luna has a larger context window, supporting 1.05M tokens compared with 400K tokens.

Veredito

Tanto GPT-5.6 Luna (Indicado para máxima economia por token e alto desempenho em escala de produção, arquiteturas RAG corporativas e integração escalável via API.) quanto GPT-5.5 Instant (Indicado para máxima economia por token e alto desempenho em escala de produção, arquiteturas RAG corporativas e integração escalável via API.) entregam excelente desempenho: GPT-5.5 Instant lidera em inteligência geral e programação, GPT-5.6 Luna oferece geração mais rápida e GPT-5.6 Luna apresenta o melhor custo-benefício em produção.

Perguntas Frequentes (FAQ)

Qual é melhor para programação e raciocínio, GPT-5.6 Luna ou GPT-5.5 Instant?+

Nas avaliações de inteligência e código, GPT-5.5 Instant leva vantagem. Confira os gráficos SWE-bench e GPQA acima para detalhes.

Qual modelo tem a API mais barata, GPT-5.6 Luna ou GPT-5.5 Instant?+

O GPT-5.6 Luna custa $0.20 / $1.20 por 1M de tokens (entrada/saída) e o GPT-5.5 Instant custa $0.75 / $6.00. No custo combinado, GPT-5.6 Luna é mais econômico.

Qual modelo possui maior janela de contexto e velocidade?+

O GPT-5.6 Luna suporta 1.05M tokens de contexto contra 400K tokens do GPT-5.5 Instant, enquanto GPT-5.6 Luna 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).