Spend by Source Chart

How is engineering AI spend distributed across sources week by week, and which platforms are driving the most spend?

Bar chart showing a week-by-week breakdown of AI coding budget by platform, highlighting shifts in vendor spending.

What it shows

The Engineering Cost Spend by Source chart breaks engineering's AI spend into weekly bars by platform, showing how much of the department budget is going to each source (Claude, Codex, Cursor, GCP Vertex, AWS Bedrock, OpenAI Platform, Anthropic Platform, OpenRouter, ChatGPT) week by week. It surfaces vendor mix shifts as they happen rather than at monthly invoice reconciliation, making mid-period budget corrections possible.

Why it matters

Engineering teams regularly shift tool usage faster than procurement tracks it. A team that moves from Codex to Claude Code mid-quarter generates a vendor mix change that affects the budget model, the license renewal conversation, and potentially the security posture, none of which surface on a monthly billing view until the next invoice cycle. Week-by-week source tracking gives CTOs and engineering finance partners the visibility to detect those shifts in real time and respond before they become budget surprises.

The Larridin angle

The per-source, per-week view is particularly important for engineering because the department typically runs the widest mix of AI tools in the org, combining cloud infrastructure APIs (Vertex, Bedrock), coding-specific agents (Claude Code, Codex, Cursor), and general-purpose tools (ChatGPT, OpenRouter). No individual vendor dashboard shows the full cross-source picture.

Related Cost Metrics

Common questions

What is the purpose of the Engineering Cost Spend by Source chart?

The chart provides a weekly breakdown of AI spend across nine platforms, allowing for real-time tracking of vendor mix shifts and enabling timely budget adjustments.

Why is weekly tracking of AI spend important for engineering teams?

Weekly tracking allows engineering teams to detect and respond to vendor mix changes before they impact the budget, license renewals, or security posture.

Which AI platforms are included in the spend breakdown?

The breakdown includes GCP Vertex, AWS Bedrock, OpenAI Platform, Codex, Anthropic Platform, Cursor, OpenRouter, ChatGPT, and Claude.

How does the weekly spend chart benefit the C-suite?

It provides CTOs and finance partners with the visibility needed to manage budget surprises and make informed decisions about tool usage and vendor relationships.