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VECTOR WIREAI INTELLIGENCE
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Claude Opus 4.6 vs GPT-5.4

Anthropic · released

Wins 0 of 8 areas

—

OpenAI · released

Wins 6 of 8 areas

Coding · Reasoning · Images and charts · Math · Long documents · Following instructions

GPT-5.4 is the stronger all-rounder.

Scores updated · 88 tests both models report · How we compare

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.

Claude Opus 4.6$5.00 to read · $25.00 to write$30Price from Anthropic's own price page
GPT-5.4$2.50 to read · $15.00 to write$18Price from Artificial Analysis

GPT-5.4 costs 42% less for the same work.

The biggest differences

The three tests each model wins by the widest margin. Scores are out of 100.

Where GPT-5.4 pulls ahead

  • Proof problems from the US Math OlympiadUSAMO 2026+29points aheadGPT-5.495.2Claude Opus 4.666.2
  • Extremely hard research-level math problemsFrontierMath Tier 4+22.2points aheadGPT-5.449Claude Opus 4.626.8
  • Follows unfamiliar, precisely checkable instructionsIFBench+20.8points aheadGPT-5.473.9Claude Opus 4.653.1

Where Claude Opus 4.6 pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+28.9points aheadClaude Opus 4.637.2GPT-5.48.3
  • Real work tasks from 44 professionsGDPVal+18.5points aheadClaude Opus 4.655.9GPT-5.437.4
  • Fixes real GitHub issues in many programming languagesSWE-bench Multilingual+6.1points aheadClaude Opus 4.677.8GPT-5.471.7

Every test, side by side

All 88 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingGPT-5.4

Full coding ranking

AgentsEven

Full agents ranking

ReasoningGPT-5.4

Full reasoning ranking

FactsEven

Full facts ranking

Images and chartsGPT-5.4

Full images and charts ranking

MathGPT-5.4

Full math ranking

Long documentsGPT-5.4

Full long documents ranking

Following instructionsGPT-5.4

Full following instructions ranking

Other results53 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.

Questions people ask

Which is better, Claude Opus 4.6 or GPT-5.4?

GPT-5.4 wins six of the eight areas we test: coding, reasoning, images and charts, math, long documents and following instructions. Claude Opus 4.6 wins none. They are level on agents and facts.

Which is better for coding?

GPT-5.4. It wins 4 of the 7 coding tests both models report; Claude Opus 4.6 wins 2, and 1 is a tie.

Which is cheaper?

Claude Opus 4.6 costs $5.00 per million input tokens and $25.00 per million output tokens; GPT-5.4 costs $2.50 and $15.00. That makes GPT-5.4 about 42% cheaper for the same work.

How do you compare the two?

We use the 88 benchmark tests both models have published scores on. The verdict counts the 35 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 53 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.