Claude Opus 4.7 vs Grok 4.3
Wins 6 of 8 areas
Coding · Agents · Reasoning · Images and charts · Math · Long documents
Wins 0 of 8 areas
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Claude Opus 4.7 is the stronger all-rounder.Grok 4.3 is cheaper.
Scores updated · 30 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. 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 software60Claude Opus 4.76 of 6 tests
- AgentsCarrying out multi-step tasks on its own40Claude Opus 4.74 of 4 tests
- ReasoningHard problems that need careful thinking40Claude Opus 4.74 of 4 tests
- Images and chartsUnderstanding pictures, charts and video10Claude Opus 4.71 of 2 tests · 1 tie
- MathCompetition and research-level math10Claude Opus 4.71 of 1 test
- Long documentsFinding answers in very long texts10Claude Opus 4.71 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
- Following instructionsDoing exactly what it is asked11Even1 each
Math and long documents 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.
Grok 4.3 costs 88% 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 Opus 4.7 pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+43.4points ahead
- Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+32.2points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+22.2points ahead
Where Grok 4.3 pulls ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+22.7points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+16.5points ahead
Every test, side by side
All 30 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Opus 4.7
- Terminal-Bench 2.1Claude Opus 4.7 by 43.483.139.7+43.4
- LiveBench · Agentic CodingClaude Opus 4.7 by 32.250.718.5+32.2
- LMArena · WebDevClaude Opus 4.7 by 201 rating points15581357+201 rating
- Terminal-Bench HardClaude Opus 4.7 by 13.651.537.9+13.6
- LiveBench · CodingClaude Opus 4.7 by 12.282.169.9+12.2
- SciCodeClaude Opus 4.7 by 6.254.548.3+6.2
AgentsClaude Opus 4.7
- τ-Bench V3 · BankingClaude Opus 4.7 by 22.234.612.4+22.2
- GDPValClaude Opus 4.7 by 20.842.822+20.8
- AA ApexAgentsClaude Opus 4.7 by 16.933.917+16.9
- AA IT-Bench SREClaude Opus 4.7 by 1446.732.7+14
ReasoningClaude Opus 4.7
- LiveBench · ReasoningClaude Opus 4.7 by 16.487.270.8+16.4
- Humanity's Last ExamClaude Opus 4.7 by 5.142.337.2+5.1
- CritPtClaude Opus 4.7 by 4128+4
- GPQA DiamondClaude Opus 4.7 by 1.391.490.1+1.3
FactsEven
- AA-Omniscience · Non-hallucinationGrok 4.3 by 16.557.774.2+16.5
- AA-Omniscience · AccuracyClaude Opus 4.7 by 14.148.934.8+14.1
Images and chartsClaude Opus 4.7
- LMArena · VisionClaude Opus 4.7 by 84 rating points13131229+84 rating
- MMMU-Protie78.878.1tie
Following instructionsEven
- IFBenchGrok 4.3 by 22.758.681.3+22.7
- LiveBench · Instruction FollowingClaude Opus 4.7 by 3.966.762.8+3.9
Other results8 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.
- Artificial Analysis Coding IndexClaude Opus 4.7 by 31.473.642.2+31.4
- livebench_data_analysisClaude Opus 4.7 by 22.578.355.8+22.5
- AA Agentic IndexClaude Opus 4.7 by 22.339.517.2+22.3
- AA IntelligenceClaude Opus 4.7 by 15.840.724.9+15.8
- Finance Agent v2Claude Opus 4.7 by 13.851.537.7+13.8
- AA-OmniscienceClaude Opus 4.7 by 9.327.318+9.3
- τ²-Bench Telecom (AA run)Grok 4.3 by 9.188.697.7+9.1
- livebench_languageClaude Opus 4.7 by 4.377.973.6+4.3
Questions people ask
Which is better, Claude Opus 4.7 or Grok 4.3?
Claude Opus 4.7 wins six of the eight areas we test: coding, agents, reasoning, images and charts, math and long documents. Grok 4.3 wins none, but costs 88% less. They are level on facts and following instructions.
Which is better for coding?
Claude Opus 4.7. It wins 6 of the 6 coding tests both models report; Grok 4.3 wins none.
Which is cheaper?
Claude Opus 4.7 costs $5.00 per million input tokens and $25.00 per million output tokens; Grok 4.3 costs $1.25 and $2.50. That makes Grok 4.3 about 88% cheaper for the same work.
How do you compare the two?
We use the 30 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 8 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.