Escolha de modelos,
preços e notas de rollout.
Notas práticas para times que lançam produtos de IA, comparam provedores, estimam custo em tokens e definem o próximo passo do rollout.
Central de conteúdo
Notas de decisão para times de produto e plataforma
O que o blog do NextModel cobre?
O blog do NextModel cobre decisões práticas sobre modelos de IA: como estimar custo de API, comparar alternativas no estilo OpenRouter, avaliar modelos chineses de baixo custo e medir o reuso seguro de respostas LLM antes do cache em produção.
Product · 2026-08-31
One API, every model — watch the NextModel tour
A 50-second tour of NextModel: one OpenAI-compatible API that routes across providers, passes upstream prompt-cache hits through 1:1 at official cached rates, and anchors a receipt to every request.
Model routing · 2026-07-01
LLM Router: How It Works and Top Alternatives
An LLM router sends each request to a model based on cost, latency, or capability. Compare approaches, then try one with a free API key.
Model routing · 2026-07-01
LLM Gateway: Compare Options and Alternatives
Compare LLM gateway options: routing, cache, failover, receipts, and what NextModel actually does with OpenAI-compatible traffic.
Caching · 2026-07-01
Semantic Caching for LLM APIs: A Practical Guide
Semantic caching reuses stored LLM responses for prompts with similar meaning, not just identical text. Learn how it works, when to use it, and how to tune it.
Provenance · 2026-07-01
AI Provenance: What It Is and Why It Matters
AI provenance means knowing which model produced an output and proving it later. See what a receipt records and how NextModel supports ai provenance today.
Operations · 2026-07-01
LLM Observability: Metrics, Traces, and Gateway Setup
LLM observability tracks latency, cost, errors, and traces across every model call. See the key metrics and how a gateway enables it without custom code.
Comparativo · 2026-05-27
Bad Hit Rate: a métrica que todo cache de LLM precisa acompanhar
Por que Safe Hit Rate e Bad Hit Rate importam mais do que a hit rate bruta ao avaliar o reuso de respostas de LLM.
Guia de modelo · 2026-05-21
Guia da API do Doubao Seed 2.0 Mini: preços, usos e chamadas compatíveis com OpenAI
Um guia para desenvolvedores sobre como usar o Doubao Seed 2.0 Mini via NextModel, com preço, melhores casos de uso e código de início rápido.
Roteamento de modelos · 2026-05-21
Alternativas ao OpenRouter para times que precisam controlar o custo da API de IA
Como avaliar um acesso multi-modelo no estilo OpenRouter quando o time também precisa de orçamento, BYOK, uso por equipe e fontes locais de modelos.
Controle de custos · 2026-05-21
Como estimar o custo de uma API de IA antes do lançamento
Uma fórmula prática para estimar o gasto do modelo a partir de tokens de entrada, tokens de saída, volume de requisições e preço do modelo.
Model review · 2026-08-16
GPT-5 Mini cache safety review: 80% Safe Hit Rate on NextModel
First-party CacheSafety numbers for openai/gpt-5-mini: 50 prompts, 80% Safe Hit Rate, 0% Bad Hit Rate, and what we did not measure.
Model news · 2026-08-16
GPT-5 is listed on NextModel: price, context, and the id you call
OpenAI GPT-5 is in the NextModel catalog at 1.25 / 10 per million tokens, with a 400k context window. CacheSafety for this exact id is still unmeasured.
Model news · 2026-08-16
DeepSeek V4 Flash CN on NextModel: 1 input, unpublished context
DeepSeek V4 Flash CN is listed at 0.14 / 0.28 per million tokens for Chinese workloads. Context window and cache safety stay unpublished.
Model review · 2026-08-16
GLM-5 CN cache safety review: family data only, CN still unmeasured
The live catalog id is z-ai/glm-5-cn. The only CacheSafety row is for base GLM-5: 30% Safe Hit Rate, 0% Bad Hit Rate. The CN variant itself is unmeasured.
Model news · 2026-08-16
Claude Sonnet 5 is listed on NextModel: 1M context, cache scores unpublished
Anthropic Claude Sonnet 5 is in the NextModel catalog at 2 / 10 per million tokens, with a 1,000,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Gemini 3.5 Flash is listed on NextModel: 1,048,576 context, no cache row
Google Gemini 3.5 Flash is listed at 1.50 / 9 per million tokens with a 1,048,576 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
Kimi K3 is listed on NextModel: 1,048,576 context, cache scores unpublished
MoonshotAI Kimi K3 is listed at 2.95 / 14.71 per million tokens with a 1,048,576 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
GPT-5 Nano is listed on NextModel: 0.05 input, 400k context
OpenAI GPT-5 Nano is in the NextModel catalog at 0.05 / 0.40 per million tokens, with a 400,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Claude Opus 5 is listed on NextModel: 1M context, cache scores unpublished
Anthropic Claude Opus 5 is listed at 5 / 25 per million tokens, with a 1,000,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Gemini 3 Flash Preview is listed on NextModel: 1,048,576 context
Google Gemini 3 Flash Preview is listed at 0.5 / 3 per million tokens, with a 1,048,576 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
Kimi K2.5 CN is listed on NextModel: 0.58 input, unpublished context
MoonshotAI Kimi K2.5 CN is listed at 0.58 / 3.02 per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
GPT-5 Pro is listed on NextModel: 15 input, 400k context
OpenAI GPT-5 Pro is in the NextModel catalog at 15 / 120 per million tokens, with a 400,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Claude Haiku 4.5 is listed on NextModel: 1 input, 200k context
Anthropic Claude Haiku 4.5 is listed at 1 / 5 per million tokens, with a 200,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Gemini 3.1 Flash Lite is listed on NextModel: 0.25 input, 1,048,576 context
Google Gemini 3.1 Flash Lite is listed at 0.25 / 1.50 per million tokens, with a 1,048,576 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
DeepSeek V4 PRO CN is listed on NextModel: 1.65 input, unpublished context
DeepSeek V4 PRO CN is listed at 1.65 / 3.31 per million tokens for Chinese workloads. Context window and CacheSafety stay unpublished.
Model news · 2026-08-16
GPT-5.4 is listed on NextModel: 2.50 input, 1,050,000 context
OpenAI GPT-5.4 is in the NextModel catalog at 2.50 / 15 per million tokens, with a 1,050,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
GPT-5.5 is listed on NextModel: 5 input, 1,050,000 context
OpenAI GPT-5.5 is listed at 5 / 30 per million tokens, with a 1,050,000 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
GLM 5.1 CN is listed on NextModel: 0.83 input, unpublished context
Zhipu GLM 5.1 CN is listed at 0.83 / 3.31 per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
GLM 5.2 CN is listed on NextModel: 1.18 input, unpublished context
Zhipu GLM 5.2 CN is listed at 1.18 / 4.12 per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
Claude Sonnet 4.6 is listed on NextModel: 1M context, cache scores unpublished
Anthropic Claude Sonnet 4.6 is listed at 3 / 15 per million tokens, with a 1,000,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Gemini 2.5 Flash is listed on NextModel: 0.30 input, 1,048,576 context
Google Gemini 2.5 Flash is listed at 0.30 / 2.50 per million tokens, with a 1,048,576 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
Doubao Seed 2.0 Lite is listed on NextModel: 0.09 input, unpublished context
Doubao Seed 2.0 Lite is listed at 0.09 / 0.5330 per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
DeepSeek V3.2 CN is listed on NextModel: 0.29 input, unpublished context
DeepSeek V3.2 CN is listed at 0.29 / 0.44 per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
Claude Sonnet 4.5 is listed on NextModel: 1M context, cache scores unpublished
Anthropic Claude Sonnet 4.5 is listed at 3 / 15 per million tokens, with a 1,000,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Gemini 3.5 Flash Lite is listed on NextModel: 0.30 input, 1,048,576 context
Google Gemini 3.5 Flash Lite is listed at 0.30 / 2.50 per million tokens, with a 1,048,576 token context window. First-party cache scores are unpublished.
Model news · 2026-08-16
GPT-4o-mini is listed on NextModel: 0.15 input, 128k context
OpenAI GPT-4o-mini is listed at 0.15 / 0.6 per million tokens, with a 128,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Doubao Seed 2.1 Turbo is listed on NextModel: 0.45 input, unpublished context
Doubao Seed 2.1 Turbo is listed at 0.45 input per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Model news · 2026-08-16
GPT-4o is listed on NextModel: 2.50 input, 128k context
OpenAI GPT-4o is listed at 2.50 / 10 per million tokens, with a 128,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
GPT-4.1 is listed on NextModel: 2 input, 1,047,576 context
OpenAI GPT-4.1 is listed at 2 input per million tokens, with a 1,047,576 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
GPT-5.1 is listed on NextModel: 1.25 input, 400k context
OpenAI GPT-5.1 is listed at 1.25 input per million tokens, with a 400,000 token context window. CacheSafety for this exact id is unpublished.
Model news · 2026-08-16
Kimi K2.6 CN is listed on NextModel: 0.9 input, unpublished context
MoonshotAI Kimi K2.6 CN is listed at 0.9 input per million tokens. Context window and CacheSafety for this exact id stay unpublished.
Novidades de modelos · 2026-09-05
GPT-6 Astra no NextModel: contexto de 1M, uso do computador, uma só API
openai/gpt-6-astra está listado a $10/$50 por milhão de tokens, com janela de contexto de 1,050,000 tokens e preço em camadas acima de 272K tokens. Especificações, preços e o que ainda não foi verificado.
Comparações · 2026-09-05
GPT-6 Astra vs GPT-5.6 Sol: quando o upgrade 2x se paga
O Astra está listado a $10/$50 contra $5/$30 do Sol, ambos com janelas de 1,050,000 tokens. Os benchmarks de contexto longo da OpenAI mostram quando o upgrade vale a pena — e quando não vale.
Comparações · 2026-09-05
GPT-6 Astra vs Claude Fable 5.1: como ler o debate da semana de lançamento
A cobertura da semana de lançamento coloca o GPT-6 Astra contra o Claude Fable 5.1 em índices gerais. O que de fato foi publicado e como fazer um A/B do debate com o seu próprio tráfego.
Preços · 2026-09-05
Preços do GPT-6 Astra explicados: o penhasco dos 272K, cache e exemplos calculados
O GPT-6 Astra está listado a $10/$50 por milhão de tokens — até o seu prompt passar de 272K tokens, onde a camada dobra para $20/$75. A matemática, exemplos calculados e quando o cache salva você.
Guias · 2026-09-05
Migrando para o GPT-6 Astra: model ids, API de Responses e um plano de rollback
Sair do gpt-5.x para o openai/gpt-6-astra é uma mudança de uma única string num gateway compatível com OpenAI — além de limites de saída, preços por camada e uma perna de fallback que vale a pena planejar.
Engenharia · 2026-09-05
Contexto de 1M em produção: o que os números de recuperação do GPT-6 Astra realmente compram
Os resultados MRCR v2 da OpenAI colocam o GPT-6 Astra em 96.3% de recuperação de needles acima de 512K tokens. O que isso significa para decisões entre RAG e contexto longo — e o que não cobre.
Guias · 2026-09-05
GPT-6 Astra com orçamento limitado: cache, roteamento e tarifas de fronteira só quando importa
Preço de fronteira não precisa ser o seu preço médio: cache hits a $1, disciplina de prompts abaixo de 272K e roteamento do trabalho rotineiro para pernas de catálogo mais baratas mantêm o gasto com o Astra sob controle.
Community · 2026-09-06
What early testers are actually doing with GPT-6 Astra
Nine verified launch-week quotes on GPT-6 Astra: a code-review win, harness-dependent benchmarks, uneven computer use, and mixed verdicts on price.