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Token & cost optimization

A smaller LLM bill, same quality · 40 articles

Prompt caching, context window engineering, token budgets, batching — anything that drops your LLM bill.

Subtopics:Prompt cachingContext windowBatchingToken budgets
Token & cost optimizationJul 18, 2026 2 min read

Optimizing Context Windows with OpenAI Server-Side Compaction

OpenAI introduced Server-Side Compaction to reduce context size in long-running interactions while preserving critical conversation state. This stateless feature allows developers to maintain reasoning quality while lowering latency and token costs.

Why it matters

You can drastically reduce your API costs and long-tail latency in long agentic conversations by letting the server handle context pruning automatically.

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Token & cost optimizationJul 15, 2026 2 min read

ChatGPT Email Automation Saves Forty-Five Thousand Dollars in Invoice Discrepancies

A developer implemented a simple ChatGPT email integration with read-only access to audit scanned PDF construction invoices. The script identified $45,000 in duplicates and pricing errors over three years, instantly recovering the LLM's subscription cost 25 times over.

Why it matters

This real-world example showcases how small-scale, highly secured AI automations can yield massive financial returns with very low operational overhead.

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Token & cost optimizationJul 15, 2026 2 min read

Killing Coding Agent Slop Using Adversarial Self-Play Techniques

Telos introduces a method to eliminate low-quality code generated by autonomous agents through adversarial self-play. This approach forces agents to stress-test their own code against opposing agent models.

Why it matters

You can integrate adversarial testing cycles into your agentic CI/CD pipelines to catch bad logic before production.

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Token & cost optimizationJul 13, 2026 2 min read

Quadrupling Performance in Dependency-Bound Loops with Branch Prediction

A classic dependency-bound loop performing pointer/index chasing can be heavily bottlenecked by memory latency. By introducing a semantically useless if-condition paired with a volatile cast, developers can trick the CPU's branch predictor into speculative execution, resulting in up to 4x throughput improvements.

Why it matters

You can employ branch prediction and volatile casts to bypass CPU memory latency limits in tightly-wound, dependent loops.

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Token & cost optimizationJul 11, 2026 2 min read

Micro-Optimizing Sorting Networks in C++ for Performance

Modern compiler optimization often hinges on code style rather than raw algorithms. Using branch-free sorting networks and loop unrolling can significantly outperform standard library sorting for small datasets.

Why it matters

Improve performance of your hot paths by choosing branch-free logic over standard branching primitives.

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Token & cost optimizationJul 9, 2026 2 min read

SpaceXAI launches Grok 4.5 promising twice greater token efficiency and lower costs

SpaceXAI has launched Grok 4.5, positioning it as an Opus-class model with improved speed, lower pricing, and significantly better token efficiency compared to competitors.

Why it matters

You can deploy complex agentic workflows at a fraction of the cost, paying just $2 per million input tokens.

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