Claude API vs OpenAI 2026 — 200K vs 128K context, token pricing, SDK design. Find the right model for long docs, code generation, or cost-sensitive apps.
Originally published at claudeguide.io/claude-vs-openai-api-comparison-2026
Claude API vs OpenAI API: Developer Comparison (2026)
Both APIs let you build LLM-powered applications, but they have meaningfully different strengths, pricing structures, and SDK designs. This comparison focuses on what matters to developers building production systems in 2026.
Pricing comparison (April 2026)
Input token pricing
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