ModelRefs / GPT-5 vs Claude 3.7 Sonnet

GPT-5 vs Claude 3.7 Sonnet

GPT-5 vs Claude 3.7 Sonnet: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.

Overview

Claude 3.7 Sonnet: Claude 3.7 Sonnet is Anthropic's February 2025 hybrid reasoning model, combining immediate answers with an optional extended thinking mode in a single model rather than two. Thinking can be budgeted by token count up to a 128,000-token output limit, across a 200,000-token context window. The claude-3-7-sonnet-20250219 snapshot was deprecated on 28 October 2025 and retired on Anthropic-operated platforms on 19 February 2026.

GPT-5: GPT-5 is OpenAI's August 2025 reasoning model for coding, reasoning, and agentic tasks. The API model supports text input and output, image input, configurable reasoning effort, and an immutable gpt-5-2025-08-07 snapshot; OpenAI now classifies it as a previous-generation model.

Context window: Claude 3.7 Sonnet accepts up to 200,000 tokens, GPT-5 up to 400,000. Confirm the limit for your specific deployment channel before relying on it.

Claude 3.7 Sonnet vs GPT-5 at a glance

AttributeClaude 3.7 SonnetGPT-5
ProviderAnthropicOpenAI
Released2025-02-242025-08-07
Context window200,000 tokens400,000 tokens
Input price$3/M tokens$1.25/M tokens
Output price$15/M tokens$10/M tokens
LicenceProprietaryProprietary
Self-hostableNo, hosted onlyNo, hosted only
Modalitiestext, visiontext, vision

Benchmarks reported for both

BenchmarkClaude 3.7 SonnetGPT-5Reported
SWE-Bench Verified (resolved)63.774.92025-02-24 / 2025-08-07

Each row compares the same benchmark, the same reported metric, and the same task set. Scores are as published by their cited sources on the dates shown. Different runs still use different harnesses and prompts, so treat these as directional evidence rather than a head-to-head result.

Where they differ most

  • Agentic: Claude 3.7 Sonnet 64%, GPT-5 89%. GPT-5 leads on this dimension.
  • Coding: Claude 3.7 Sonnet 64%, GPT-5 81%. GPT-5 leads on this dimension.
  • Cost Efficiency: Claude 3.7 Sonnet 37%, GPT-5 47%. GPT-5 leads on this dimension.

Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.

Continue your research

Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to GPT-5 vs Claude 3.7 Sonnet.

Frequently asked questions

Which is better, GPT-5 or Claude 3.7 Sonnet?

GPT-5 and Claude 3.7 Sonnet target different workloads — see the benchmark and pricing tables for a side-by-side answer.

Is GPT-5 cheaper than Claude 3.7 Sonnet?

Compare $0.00125 vs $0.00300 on this page.