Head-to-Head Model Comparison

Grok-4 vs Claude Opus 5.5

Benchmarks, API Token Pricing, Context Window & Speed Comparison

Revisado pela equipe de pesquisa do GetInfoUsÚltima revisão: October 2026Política editorial

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Grok-4Profile

Claude Opus 5.5Profile

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xAI

Grok-4

Modelo Principal de Fronteira

O Grok-4 da xAI é um modelo de IA projetado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, oferecendo janela de contexto de 1M, velocidade de 125 tokens/s, índice de inteligência de 92/100 e tarifa de $

Intelligence Index92 / 100

Input Token:

$2.50 / 1M

Output Token:

$10.00 / 1M

Context Window:

1M tokens

SWE-bench Verified:

76.5%

Anthropic

Claude Opus 5.5

Modelo Principal de Fronteira

O Claude Opus 5.5 da Anthropic é um modelo de IA projetado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, oferecendo janela de contexto de 1M, velocidade de 78 tokens/s, índice de inteligência de 94/100

Intelligence Index94 / 100

Input Token:

$4.00 / 1M

Output Token:

$20.00 / 1M

Context Window:

1M tokens

SWE-bench Verified:

84.6%

Principais Diferenças em Resumo

Grok-4 is 1.9x cheaper for API usage (input + output tokens combined).
Grok-4 is faster at 125 tok/s vs 78 tok/s.
Claude Opus 5.5 leads on SWE-bench coding (84.6% vs 76.5%).

Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →

Feature	Grok-4	Claude Opus 5.5
Intelligence Index Composite reasoning & knowledge score (0-100)	92	94
Provider	xAI	Anthropic
Input Price Cost per million input tokens	$2.50 / 1M	$4.00 / 1M
Output Price Cost per million output tokens	$10.00 / 1M	$20.00 / 1M
Blended Price Weighted 7:2:1 cache:input:output per 1M	$1.68 / 1M	$3.08 / 1M
Context Window Maximum input + output tokens	1M tokens~1,500 A4 pages of text	1M tokens~1,500 A4 pages of text
Max Output Tokens Per single request	64K	128K
Throughput Speed Tokens generated per second	125 tok/s	78 tok/s
SWE-bench Verified Real-world software engineering	76.5%	84.6%
GPQA Diamond Graduate-level reasoning	77.8%	82.3%
Cached Input Price Prompt caching discount per 1M tokens	$0.25 / 1M	$0.40 / 1M

Quem vence em cada categoria?

At-a-glance decision framework

Coding

Claude Opus 5.5

+8.1% SWE-bench lead

Cost

Grok-4

1.9x cheaper monthly runtime

Speed

Grok-4

+60% faster generation

Context

Tied

1M tokens window

Pontuações de Benchmarks Verificadas

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

Grok-4Claude Opus 5.5

SWE-bench Verified (Autonomous Coding)

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

76.5%vs84.6%

GPQA Diamond (Doctorate-Level Science & Math)

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

77.8%vs82.3%

MMLU-Pro (Multi-task Language Understanding)

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

87.4%vs91.5%

LMSYS Chatbot Arena Elo

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

1507ptsvs1507pts

Humanity's Last Exam (Frontier Expert Knowledge)

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

15.6%vs19.8%

Terminal-Bench (Agentic Coding & Terminal Use)

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

54.2%vs66.4%

SciCode (Scientific Computing)

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

48.7%vs58.7%

LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

75.3%vs83.1%

AIME (Advanced Math Competition)

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

89.2%vs95.4%

Long-Context Reasoning

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

86.5%vs92.6%

Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

125 tok/s vs78 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

Grok-40.68s

Claude Opus 5.51.40s

Est. End-to-End Response (500 tokens)TTFT + generation time

Grok-44.68s

Claude Opus 5.57.81s

Simulador Interativo de Custo de Tokens

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

Daily Input Tokens100K / day

10K500K1M

Daily Output Tokens30K / day

5K150K300K

Prompt Cache Hit Ratio50% cached

0% (Cold)50%90% (Warm)

Grok-4 Monthly API Bill

$13.13 / month

$2.5/1M in · $10/1M out

Claude Opus 5.5 Monthly API Bill

$24.60 / month

$4/1M in · $20/1M out

Grok-4 saves approximately $11.48 / month (47%) under this workload.1.9x Savings

Grok-4 · Strengths & Key Advantages

Janela de contexto de 1M com limite máximo de saída de 64K tokens (SWE-bench Verified 76.5% · GPQA Diamond 77.8%)
Taxa de transferência rápida de 125 tokens/segundo com latência inicial (TTFT) de 680 ms
Economia de API competitiva ($2.5/$10 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
Para alto volume de requisições, recomenda-se ativar o cache de prompts e a Batch API para reduzir custos

Claude Opus 5.5 · Strengths & Key Advantages

Janela de contexto de 1M com limite máximo de saída de 128K tokens (SWE-bench Verified 84.6% · GPQA Diamond 82.3%)
Taxa de transferência rápida de 78 tokens/segundo com latência inicial (TTFT) de 1400 ms
Economia de API competitiva ($4/$20 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
Para alto volume de requisições, recomenda-se ativar o cache de prompts e a Batch API para reduzir custos

Token Use & Task Economics

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

Metric	Grok-4	Claude Opus 5.5
Cost per Task Estimated USD to finish one task	$1.65	$3.85
Output Tokens / Task Tokens generated per task	48K	68K
Reasoning Tokens / Task Thinking tokens burned per task	24K	42K

Especificações Técnicas

Architecture, release timeline, capabilities, and modalities.

Feature	Grok-4	Claude Opus 5.5
Official API Model ID (SDK)	grok-4-latest	claude-opus-5-5-20260901
API Protocol	xAI REST API (OpenAI-Compatible)	Anthropic Messages API + AWS Bedrock + Vertex AI
Release Date	2026-07	2026-09
Knowledge Cutoff	Real-time (Up to October 2026)	June 2026
Architecture	Colossus-Scale Dense Mixture-of-Experts	Extended Autonomous Hybrid Reasoning Transformer
Parameters	Confidential	Confidential
Enterprise Rate Limits (RPM / TPM)	5,000 – 15,000 RPM (Production Tier) · 4,000,000 – 10,000,000 TPM	4,000 – 10,000 RPM (Tier 4 + Priority Tier) · 4,000,000 – 10,000,000 TPM
Long-Context Tier (>128K/200K)	Flat rate ($2.5/1M in) across full 1000K window	Standard rate up to 200K tokens; 2x input/output tier above 200K tokens
Prompt Cache Policy & TTL	Cached input at $0.25/1M tokens	$0.4/1M cached read (90% off); 5-min default & 1-hour extended TTL
Computer Use / GUI Agent	Supported (Screen coordinate grounding, browser & desktop GUI action loops)	Supported (Screen coordinate grounding, browser & desktop GUI action loops)
MCP & Parallel Tool Calling	Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema	Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
Web Search Grounding & Sandbox	Real-time Web & X (Twitter) Search Grounding + Code Execution	Native Web Search Citations + Code Execution Tool + MCP Connectors
Official Fine-Tuning Support	API Prompt Engineering & RAG Distillation	Custom Model Tuning via Amazon Bedrock & Prompt Distillation
Multimodal Token Billing	Text 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 VRAM	Cloud-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 Classification	xAI Production Safety & Alignment Verified	Anthropic RSP ASL-2 / ASL-3 Constitutional Safety Evaluated
Enterprise Compliance (ZDR/HIPAA/SOC2)	SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier	SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Input Modalities	text, vision	text, vision
Output Modalities	text	text

Grok-4 vs Claude Opus 5.5: Respostas Rápidas (FAQ)

Which is more intelligent, Grok-4 or Claude Opus 5.5?

Claude Opus 5.5 is more intelligent. It scores 94 compared with 92 on the composite Intelligence Index.

Which model is faster?

Grok-4 is faster, generating 125 tokens per second compared with 78 tokens per second.

Which model is cheaper to run?

Grok-4 is cheaper at $1.68 per 1M tokens blended, compared with $3.08 (7:2:1 cache:input:output ratio).

Which model has lower latency?

Grok-4 has lower latency, with a time to first token of 0.68s compared with 1.40s.

Veredito

Tanto Grok-4 (Indicado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, arquiteturas RAG corporativas e integração escalável via API.) quanto Claude Opus 5.5 (Indicado para raciocínio corporativo de fronteira, programação avançada e cargas de produção, arquiteturas RAG corporativas e integração escalável via API.) entregam excelente desempenho: Claude Opus 5.5 lidera em inteligência geral e programação, Grok-4 oferece geração mais rápida e Grok-4 apresenta o melhor custo-benefício em produção.

Perguntas Frequentes (FAQ)

Qual é melhor para programação e raciocínio, Grok-4 ou Claude Opus 5.5?+

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

Qual modelo tem a API mais barata, Grok-4 ou Claude Opus 5.5?+

O Grok-4 custa $2.50 / $10.00 por 1M de tokens (entrada/saída) e o Claude Opus 5.5 custa $4.00 / $20.00. No custo combinado, Grok-4 é mais econômico.

Qual modelo possui maior janela de contexto e velocidade?+

O Grok-4 suporta 1M tokens de contexto contra 1M tokens do Claude Opus 5.5, enquanto Grok-4 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.

Tokens & Pricing Context Window AI Benchmarks Reasoning Models Tool Calling Model Context Protocol (MCP)

Grok-4 vs Claude Opus 5.5

Troque e Compare Qualquer Modelo

Grok-4

Claude Opus 5.5

Quem vence em cada categoria?

Pontuações de Benchmarks Verificadas

Latência e Tempo de Resposta

Simulador Interativo de Custo de Tokens

Grok-4 · Strengths & Key Advantages

Considerations & Trade-offs

Claude Opus 5.5 · Strengths & Key Advantages

Considerations & Trade-offs

Token Use & Task Economics

Especificações Técnicas

Grok-4 vs Claude Opus 5.5: Respostas Rápidas (FAQ)

Veredito

Perguntas Frequentes (FAQ)

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