Context Window

Compare

Claude Opus 4 7 Default vs ReMM SLERP 13B

This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.

Anthropic

Model

Claude Opus 4 7 Default

Image inputTool calling

Context window

1M

1,000,000 tokens · ~750K words

Model page
Undi95

Model

ReMM SLERP 13B

Context window

6K

6,144 tokens · ~5K words

Model page

Context window · side by side

Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.

Claude Opus 4 7 Default1M
ReMM SLERP 13B6K

Claude Opus 4 7 Default has about 162.8× the context window of the other in this pair.

Token calculator →Memory savings →

Claude Opus 4 7 Default has 16176% more context capacity (1000K vs 6K tokens). ReMM SLERP 13B is 62% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Claude Opus 4 7 Default. Its 1000K context fits entire documents without chunking (vs 6K).

  • RAG / high-volume retrieval

    Use ReMM SLERP 13B. Input tokens are 62% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Claude Opus 4 7 Default. Its 128K max output lets you generate complete artifacts in one request.

Full specs

Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.

SpecClaude Opus 4 7 DefaultReMM SLERP 13B
Context window1,000,000 tokens (1000K)6,144 tokens (6K)
Max output tokens128,000 tokens (128K)4,096 tokens (4K)
Speed tierDeepFast
VisionYesNo
Function callingYesNo
Extended thinkingYesNo
Prompt cachingYesNo
Batch APIYesNo
Release dateN/AJul 2023

Pricing matrix

Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.

ProviderClaude Opus 4 7 Default inClaude Opus 4 7 Default outReMM SLERP 13B inReMM SLERP 13B out
Google Vertex$5.00/M$25.00/M——
Openrouter——$1.88/M$1.88/M

Frequently asked questions

Claude Opus 4 7 Default has a larger context window: 1000K tokens vs 6K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

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Mem0 gives your AI long-term memory so you stop re-sending context on every call. That means you can use a smaller, faster, cheaper model — and still get better answers.

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Example: a multi-turn chat session

Without Mem0~128K tokens sent
Full history
Repeated info
Old context
With Mem0~20K tokens sent
Key memories
Current turn

80% less to send — works with any model