GPT-5 vs LongCat Flash Lite
Wins 6 of 6 areas
Coding · Agents · Reasoning · Facts · Long documents · Following instructions
Wins 0 of 6 areas
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GPT-5 is the stronger all-rounder.
Scores updated · 22 tests both models report · How we compare
Where each one wins
Tests won in each of the six 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 software40GPT-54 of 4 tests
- ReasoningHard problems that need careful thinking30GPT-53 of 3 tests
- FactsGetting facts right instead of making them up20GPT-52 of 2 tests
- AgentsCarrying out multi-step tasks on its own10GPT-51 of 1 test
- Long documentsFinding answers in very long texts10GPT-51 of 1 test
- Following instructionsDoing exactly what it is asked10GPT-51 of 1 test
Agents, 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.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where GPT-5 pulls ahead
- Reasons across sets of long documentsAA-LCR+49.9points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+30points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+27points ahead
Where LongCat Flash Lite pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 22 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGPT-5
- Terminal-Bench HardGPT-5 by 2232.610.6+22
- SWE-bench VerifiedGPT-5 by 20.574.954.4+20.5
- SWE-bench MultilingualGPT-5 by 17.255.338.1+17.2
- SciCodeGPT-5 by 14.542.928.4+14.5
ReasoningGPT-5
- Humanity's Last ExamGPT-5 by 22.728.55.8+22.7
- GPQA DiamondGPT-5 by 21.885.463.6+21.8
- CritPtGPT-5 by 5.75.70+5.7
FactsGPT-5
- AA-Omniscience · AccuracyGPT-5 by 2740.313.3+27
- AA-Omniscience · Non-hallucinationGPT-5 by 1417.83.8+14
Other results10 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.
- AA-OmniscienceGPT-5 by 61.4-8.7-70.1+61.4
- AIME 2025GPT-5 by 31.494.663.2+31.4
- Artificial Analysis Coding IndexGPT-5 by 21.337.816.5+21.3
- AA Agentic IndexLongCat Flash Lite by 12.326.538.8+12.3
- AA IntelligenceGPT-5 by 11.52311.5+11.5
- Terminal-BenchGPT-5 by 1043.833.8+10
- MMLU-ProGPT-5 by 8.887.178.3+8.8
- τ²-Bench (Retail)GPT-5 by 881.173.1+8
- τ²-Bench Telecom (AA run)GPT-5 by 5.384.879.5+5.3
- Tau2 airlineGPT-5 by 4.662.658+4.6
Questions people ask
Which is better, GPT-5 or LongCat Flash Lite?
GPT-5 wins all six areas where both have results: coding, agents, reasoning, facts, long documents and following instructions. LongCat Flash Lite wins none.
Which is better for coding?
GPT-5. It wins 4 of the 4 coding tests both models report; LongCat Flash Lite wins none.
How do you compare the two?
We use the 22 benchmark tests both models have published scores on. The verdict counts the 12 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 10 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.