GPT-5 vs Claude Sonnet 4.6

Complete comparison: pricing, context windows, speed, quality, and use cases. Plus an interactive calculator to see which is cheaper for YOUR workload.

Updated Jun 12, 2026 ยท 4 min read ยท Pricing verified from official sources
GPT-5
OpenAI
$1.25/1M input
$10.00/1M output
Premium
VS
Claude Sonnet 4.6
Anthropic
$3.00/1M input
$15.00/1M output
Mid-Tier

Head-to-Head Comparison

Feature GPT-5 Claude Sonnet 4.6
Input Price $1.25/M tokens $3.00/M tokens
Output Price $10.00/M tokens $15.00/M tokens
Context Window 272K tokens 1M tokens
Max Output 16K tokens 64K tokens
Speed (tokens/sec) ~120 t/s ~80 t/s
Knowledge Cutoff Early 2025 Early 2025
Vision / Multimodal Yes Yes
Function Calling Yes Yes
Streaming Yes Yes
Batch API Yes (50% off) Yes (50% off)
JSON Mode Yes Yes (structured output)
Coding (HumanEval) 92.4% 93.7%
Reasoning (MATH) 78.6% 76.2%
Overall Quality Excellent Excellent

๐Ÿ’ฐ Cost Calculator: Which is Cheaper for You?

Enter your monthly usage to see exact costs for each model.

Quick presets:
GPT-5
$0
per month
Cheaper
Claude Sonnet 4.6
$0
per month
More Expensive
$0/month
Savings by choosing GPT-5 over Claude Sonnet 4.6

๐Ÿ† The Verdict

Choose GPT-5 if: You want the lowest cost, fastest response times, and your context needs are under 272K tokens. GPT-5 is 58% cheaper on input tokens and 33% cheaper on output tokens. Best for high-volume workloads, chatbots, content generation, and cost-sensitive applications.

Choose Claude Sonnet 4.6 if: You need a massive 1M context window, longer outputs (64K vs 16K), or you prioritize coding quality. The extra cost is justified for complex reasoning tasks, large document analysis, and code-heavy workflows where context window matters.

Best strategy: Use both. Route simple, high-volume tasks to GPT-5 (cheaper, faster) and complex reasoning/long-context tasks to Claude Sonnet 4.6 (larger context, better code quality). This multi-model approach saves 30-50% vs using a single model for everything.

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