Claude 3.7 Sonnet vs GPT-5 (ChatGPT)
Wins 3 of 5 areas
Coding · Reasoning · Following instructions
Wins 2 of 5 areas
Images and charts · Long documents
Claude 3.7 Sonnet is the stronger all-rounder.GPT-5 (ChatGPT) is cheaper and better at images and charts.
Scores updated · 10 tests both models report · How we compare
Where each one wins
Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software20Claude 3.7 Sonnet2 of 2 tests
- ReasoningHard problems that need careful thinking20Claude 3.7 Sonnet2 of 2 tests
- Following instructionsDoing exactly what it is asked10Claude 3.7 Sonnet1 of 1 test
- Images and chartsUnderstanding pictures, charts and video01GPT-5 (ChatGPT)1 of 1 test
- Long documentsFinding answers in very long texts01GPT-5 (ChatGPT)1 of 1 test
Images and charts, long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
GPT-5 (ChatGPT) costs 38% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude 3.7 Sonnet pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+8.6points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+8.3points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+3.3points ahead
Where GPT-5 (ChatGPT) pulls ahead
- Reasons across sets of long documentsAA-LCR+13.3points ahead
Every test, side by side
All 10 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude 3.7 Sonnet
- Terminal-Bench HardClaude 3.7 Sonnet by 8.321.212.9+8.3
- SciCodeClaude 3.7 Sonnet by 2.540.337.8+2.5
ReasoningClaude 3.7 Sonnet
- GPQA DiamondClaude 3.7 Sonnet by 8.677.268.6+8.6
- Humanity's Last ExamClaude 3.7 Sonnet by 3.19.76.6+3.1
Images and chartsGPT-5 (ChatGPT)
- LMArena · VisionGPT-5 (ChatGPT) by 63 rating points11691232+63 rating
Following instructionsClaude 3.7 Sonnet
- IFBenchClaude 3.7 Sonnet by 3.348.345+3.3
Other results3 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- τ²-Bench Telecom (AA run)Claude 3.7 Sonnet by 54.754.70+54.7
- Artificial Analysis Coding IndexClaude 3.7 Sonnet by 15.236.421.2+15.2
- AA IntelligenceClaude 3.7 Sonnet by 7.317.710.4+7.3
Questions people ask
Which is better, Claude 3.7 Sonnet or GPT-5 (ChatGPT)?
Claude 3.7 Sonnet wins three of the five areas where both have results: coding, reasoning and following instructions. GPT-5 (ChatGPT) wins images and charts and long documents, and costs 38% less.
Which is better for coding?
Claude 3.7 Sonnet. It wins 2 of the 2 coding tests both models report; GPT-5 (ChatGPT) wins none.
Which is cheaper?
Claude 3.7 Sonnet costs $3.00 per million input tokens and $15.00 per million output tokens; GPT-5 (ChatGPT) costs $1.25 and $10.00. That makes GPT-5 (ChatGPT) about 38% cheaper for the same work.
How do you compare the two?
We use the 10 benchmark tests both models have published scores on. The verdict counts the 7 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 3 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.