7 Coding Agents, 1 Budget: Claude Code vs Cursor vs Copilot vs Devin vs Codex vs Grok Build vs Replit Agent — Real Cost Comparison 2026

Seven Agents, Very Different Cost Structures

The AI coding agent market in 2026 has more choices than ever — and more ways to get the pricing wrong. Some agents charge a flat monthly subscription. Some bill by token. Some sell compute units. Some combine all three. Comparing them on any single dimension misses the full picture.

This guide breaks down the actual cost structure of the seven most widely-used coding agents as of May 2026: Claude Code, Cursor, GitHub Copilot, Devin, OpenAI Codex, Grok Build, and Replit Agent. For each, we cover what you pay, what you get, and when the cost model works in your favor.

The Overview Table

Claude Code: Maximum Capability, Token-Transparent Pricing

Claude Code operates as a CLI-native coding agent powered by Anthropic's Claude models. The Pro subscription ($20/month) includes a usage quota; heavy users or teams running automated workflows typically move to direct API billing where costs are fully transparent.

API-billed Claude Code sessions at Sonnet 4.6 rates ($3.00/$15.00 per million tokens) typically cost $0.20–$1.50 per complex task depending on file context size and output length. For reference, the new Auto Mode (now on Pro and supporting Sonnet 4.6) allows parallel sessions without permission interruptions, which can significantly increase throughput at fixed per-session cost.

Real cost range: $0.05 (quick one-file fix) to $5.00+ (multi-file refactor with large context).

Best if: You want maximum model capability (Claude Opus 4.7 is available), full CLI integration, and transparent token-level billing. Not ideal if you want a GUI-first experience.

Cursor: IDE-Native With a Request Cap to Watch

Cursor Pro at $20/month includes 500 "fast requests" per month on frontier models (Claude Sonnet 4.6, GPT-5.5) and unlimited slower requests on cheaper models. Business at $40/month adds admin controls and higher limits.

The key cost trap: "fast requests" are consumed by Composer (the chat-based coding agent), not inline completions. Heavy Composer users burn through 500 fast requests in two to three weeks. After that, either slow queues or add-on credits apply.

Cursor's Composer 2.5 Standard model ($0.50/$2.50 per million tokens) makes it competitive with cheaper API options while staying integrated in the IDE. Composer 2.5 Fast runs at $3.00/$15.00 — identical to Claude Sonnet 4.6.

Real cost range: $20/month for moderate use, $40–80/month for heavy Composer users after fast request top-ups.

Best if: You want deep IDE integration, tab completion, and a familiar VS Code-style environment. Not ideal if you primarily work in the terminal or do heavy autonomous agent tasks.

GitHub Copilot: The Ubiquitous Option With a Flex Tier

Copilot Individual at $10/month is the lowest entry price among major agents. The Business plan at $19/month adds GitHub integration features, SSO, and policy controls. Both plans include access to premium models (Claude Sonnet, GPT-5.4) via the Copilot Max plan — though premium model access has monthly quotas.

The Copilot Flex plan (announced 2026) allows pay-per-request billing for premium models at approximately $0.04 per premium request — equivalent to roughly 10,000 tokens at Sonnet pricing. This bridges the gap between the subscription and API billing models.

Real cost range: $10–$19/month base, $30–60/month for power users on Flex plan.

Best if: Your team is heavily GitHub-native and wants AI integrated across PRs, issues, and Actions. Not ideal for complex autonomous agent workflows requiring multi-turn reasoning.

Devin: The Autonomous Agent With Premium Pricing

Devin at $500/month for teams is the most expensive agent on this list by a significant margin. It bills in ACUs (Agent Compute Units) — an abstraction that covers model inference, sandbox compute, and browser-based interaction. One ACU is roughly 15 minutes of agent work.

The Teams plan includes 250 ACUs per month — enough for 60+ hours of autonomous agent work. Additional ACUs can be purchased. For tasks requiring minimal human oversight across long-running workflows (full feature implementation, multi-repo refactors), Devin's ACU model can be cost-effective compared to developer time despite the high headline price.

Real cost range: $500/month base, $2–8 per task depending on complexity.

Best if: You have well-specified tasks that can run unattended for hours and you value autonomous completion over cost minimization. Not ideal for quick-turnaround tasks or experimentation.

OpenAI Codex: API-First, Batch-Friendly

OpenAI Codex (the cloud-based agent, distinct from the original Codex model) runs on GPT-5.3 Codex at $1.75/$14.00 per million tokens. Unlike subscription agents, Codex charges per token with no monthly base — which makes it cheap for occasional use and scales linearly with workload.

The Codex CLI (separate from the cloud agent) routes through whatever OpenAI model you configure, giving you cost control via model selection. Using GPT-5 Nano ($0.05/$0.40) for lightweight tasks and escalating to GPT-5.3 Codex only for complex tasks is a viable cost optimization strategy.

Real cost range: $0 base + $0.01–$2.00 per task depending on model and context.

Best if: You are building automated pipelines, CI/CD integrations, or batch processing workflows. Not ideal if you want a subscription-based all-inclusive plan.

Grok Build: The New Entrant With Beta Pricing

Grok Build launched in May 2026 as a beta feature for xAI's SuperGrok ($30/month) and X Premium+ subscribers. It adds Plan Mode (structured multi-step task planning), image and video generation via Imagine, and CLI access for automation and orchestration.

Beta pricing is effectively included in the SuperGrok subscription — there is no separate per-task billing during the current beta period. However, beta access means feature availability, reliability, and limits are subject to change. The underlying Grok 4 model at $3.00/$15.00 per million tokens suggests future API-billed pricing will be comparable to Claude Sonnet 4.6.

Real cost range: $30/month (included in SuperGrok during beta).

Best if: You are already a SuperGrok subscriber and want to experiment with CLI-based automation. Not recommended as a primary production coding agent until it exits beta.

Replit Agent: Full-Stack With Built-in Testing

Replit Agent at $25/month (Core) or $40/month (Teams) is unique in its integrated testing loop. The recently launched Squidler integration means the agent builds, deploys, and automatically tests applications — including browser-based end-to-end testing — without requiring external test tooling.

For solo developers building full-stack web applications who want a self-contained environment, Replit's pricing is competitive. The compute add-ons (for always-on deployments, background agents, or custom domains) are where costs escalate beyond the base subscription.

Real cost range: $25–$40/month base, $50–$100/month with compute add-ons for production deployments.

Best if: You want a single platform for building, deploying, and testing. Not ideal for developers who prefer to own their own infrastructure or need deep local development environment integration.

The Decision Table

The Bottom Line

No single agent wins across all dimensions. The right choice depends on where you work (IDE vs. terminal vs. browser), how autonomous you want your agent to be, and whether predictable flat pricing or flexible token billing better matches your workflow.

For most individual developers, the practical choice is between Cursor ($20–$40/month, IDE-native) and Claude Code (Pro at $20 or API billing for heavier use). For teams, GitHub Copilot Business ($19/seat) remains the lowest-friction choice if you are already GitHub-native.

Want to model the token costs for API-billed agents at your specific usage volume? Use the AI Cost Estimator to calculate projected monthly costs across Claude, GPT, and other models before committing to a plan.