Compare any two AI models
Choose two models to see their API prices, cached input, batch discount and context window side by side, and what 1M input tokens plus 200K output tokens would cost on each. Where we have written a full comparison, the picker sends you to it.
Prices checked 10 Oct 2026
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Full comparisons
Tier-by-tier prices, workload costs, cited benchmark results and what to pick for what.
Comparison questions
Is GPT cheaper than Claude?
Tier for tier, the two are now level on list price. At the budget end, Claude Haiku 5.5 ($0.10/$0.50) costs exactly what GPT-6 Luna ($0.10/$0.50) does, but only for prompts up to 100,000 tokens: above that Haiku 5.5 bills $0.50/$2.50, while Luna keeps its rate up to 272K tokens and rises only to $0.20/$0.75, so GPT is cheaper for long prompts. In the mid-range, GPT-6.1 Sol ($2.00/$10.00) costs exactly what Claude Sonnet 5.5 ($2.00/$10.00) does, cache reads included. One tier up, Claude Opus 5.5 ($4.00/$20.00) matches GPT-5.6 Sol's promotional $4.00/$20.00 exactly and undercuts Sol's $5.00/$30.00 list price once the promotion ends, though the older GPT-5.4 ($2.50/$15.00) is cheaper than both. At the very top, GPT-6 Astra ($10.00/$50.00) costs exactly what Claude Fable 5.1 ($10.00/$50.00) does.
Why would anyone choose Claude if GPT is cheaper?
Claude flagships roughly match GPT on context (1M tokens for Fable 5.1, Opus 5.5 and Sonnet 5.5, against 1.05M on current GPT models) and bill that whole window at standard rates, where OpenAI's GPT-6 and GPT-5.6 models charge more above 272K input tokens. Haiku 5.5 ($0.10/$0.50) matches GPT-6 Luna on prompts up to 100,000 tokens, Sonnet 5.5 ($2.00/$10.00) costs exactly what GPT-6.1 Sol does, Fable 5.1's cache reads cost a quarter of GPT-6 Astra's ($0.25 vs $1.00 per MTok), and Anthropic's Constitutional AI safety approach plus output quality on tasks like creative writing and nuanced analysis keep it competitive.
Can I switch from Claude to GPT easily?
Yes, both use similar API formats. Check our migration guides for step-by-step instructions. Most switches require minimal code changes.
Which has better context windows — GPT or Claude?
Close to a tie: Claude Fable 5.1, Opus 5.5, Sonnet 5.5, and Haiku 5.5 offer 1M tokens, while GPT-6 Astra, GPT-6.1 Sol, GPT-6 Luna, GPT-5.6, GPT-5.5, and GPT-5.4 offer 1.05M. The older Claude Haiku 4.5 has 200K, while GPT-5.4 Mini and Nano have 400K.
How do I decide between GPT and Claude for my project?
Use our comparison table and calculator to model your specific workload. Consider: monthly token volume, required context window, quality requirements, and budget constraints.
Which AI model is best for coding on a budget?
Strong budget coding options include Grok Build 0.1 ($1.00/$2.00 per MTok, a dedicated coding specialist), Mistral's Codestral ($0.30/$0.90), and Claude Haiku 5.5 ($0.10/$0.50 on prompts up to 100K tokens). For the hardest problems, teams still reach for premium models like Claude Opus 5.5 or GPT-6 Astra — a common pattern is routing routine edits to a budget model and escalating complex work.