모델 후보 목록

Best long-context model APIs for large documents

Compare long-context model APIs by window size, price, source, and when a big context is actually worth paying for.

이 후보 목록은 어디에 쓰나?: Long-context models

Long context helps when you stuff contracts, exports, support history, or large files into the prompt. It also makes bills jump. Compare window size and input price together, and decide whether retrieval would be cheaper than stuffing the whole document every time.

출처 기준: NextModel curated catalog and OpenRouter context metadata when available. · 업데이트 2026-07-01

Context

추천 후보 long-context models

먼저 후보 목록으로 시작한 다음 실제 프롬프트로 테스트하고 운영 라우팅 전에 월간 비용을 비교합니다.

OpenAICatalogHealthytypical

GPT-6 Astra via NextModel: 1.1M-token context; Starting at $10 / 1M tokens in / $50 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $10 / 1M tokensInput$50 / 1M tokensOutput1.1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVisionLong context
Platform curatedCurated and maintained in the NextModel catalog
View details
OpenAICatalogBlockedtypical

GPT-6.1 Sol via NextModel: 1.1M-token context; Starting at $2 / 1M tokens in / $10 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $2 / 1M tokensInput$10 / 1M tokensOutput1.1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVisionLong context
Platform curatedCurated and maintained in the NextModel catalog
View details
AnthropicCatalogHealthytypical

Claude Fable 5.1 via NextModel: 1M-token context; $10 / 1M tokens in / $50 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$10 / 1M tokensInput$50 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVisionLong context
Platform curatedCurated and maintained in the NextModel catalog
View details
AnthropicCatalogHealthyfast

Claude Haiku 5.5 via NextModel: 1M-token context; Starting at $0.1 / 1M tokens in / $0.5 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $0.1 / 1M tokensInput$0.5 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVisionLong context
Platform curatedCurated and maintained in the NextModel catalog
View details

비교표

가격, 공급자, 컨텍스트, 기능, 출처 기준으로 후보를 비교합니다.

운영 후보를 좁히거나 폴백 정책을 만들거나 모델 경제성을 비교할 때 사용합니다.

ModelProviderInputOutputContextCapabilitiesBest forLatencyStatusSource
GPT-6 Astraopenai/gpt-6-astraOpenAIStarting at $10 / 1M tokens$50 / 1M tokens1.1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat2408-7945msCatalogPlatform curated
GPT-6.1 Solopenai/gpt-6.1-solOpenAIStarting at $2 / 1M tokens$10 / 1M tokens1.1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat2489-8238msCatalogPlatform curated
Claude Fable 5.1anthropic/claude-fable-5.1Anthropic$10 / 1M tokens$50 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat3187-5152msCatalogPlatform curated
Claude Haiku 5.5anthropic/claude-haiku-5.5AnthropicStarting at $0.1 / 1M tokens$0.5 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1321-2017msCatalogPlatform curated
Claude Opus 4.6anthropic/claude-opus-4.6Anthropic$5 / 1M tokens$25 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1930-4195msCatalogPlatform curated
Claude Opus 5.5anthropic/claude-opus-5.5Anthropic$4 / 1M tokens$20 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1845-5119msCatalogPlatform curated
Claude Sonnet 4.6anthropic/claude-sonnet-4.6Anthropic$3 / 1M tokens$15 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1306-1903msCatalogPlatform curated
Claude Sonnet 5.5anthropic/claude-sonnet-5.5Anthropic$2 / 1M tokens$10 / 1M tokens1M
StreamingTool callingJSON modeVision
image understanding, multimodal chat1230-2392msCatalogPlatform curated

FAQ

Long-context models FAQ

Is a larger context window always better?

No. Bigger windows help with big inputs. Cost, latency, retrieval design, and answer quality still decide whether it is a good idea.

When should I use retrieval instead of a huge context window?

When most of the document is irrelevant to each question. Pull the useful chunks, send less context, and keep a smaller model if quality holds.

How do I estimate cost for long-context traffic?

Multiply average input tokens (including stuffed documents) by input price, then add output. Long inputs dominate the bill more often than people expect.