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OpenAI · released 2026-10-26

GPT-6.1 Terra

Measured on 84 benchmarks across 6 reasoning efforts.

51.0

#6 of 61 models · best at max

Reasoning efforts in this ranking

max51.0#14 of 139
xhigh45.0#25 of 139
high42.3#31 of 139
medium38.1#37 of 139
none30.4#58 of 139
low29.2#68 of 139

Strengths

  • GPT-6.1 Terra
  • Gemini 4 Carbon (#1)
  • Field median
bestField medianFrontierCode 2.0-…Terminal-Bench v4…AA-Briefcase v1.1AutomationBench-AATerminal-Bench-Sc…HLE-DiamondCritPt v2 Hard Su…AA-Omniscience v1…AA-Omniscience v1…GDP.pdf
  1. FrontierCode 2.0-AA15%42.3%#3 of 61
  2. Terminal-Bench v4-AA10%55.6%#9 of 61
  3. AA-Briefcase v1.115%1402#31 of 61
  4. AutomationBench-AA5%60.2%#20 of 61
  5. Terminal-Bench-Science-AA15%57.6%#5 of 61
  6. HLE-Diamond10%47.3%#9 of 61
  7. CritPt v2 Hard Subset10%64.5%#3 of 61
  8. AA-Omniscience v1.1 Accuracy10%47.6%#14 of 61
  9. AA-Omniscience v1.1 Non-hallucination5%65.5%#23 of 61
  10. GDP.pdf5%28.6%#6 of 61

Bars show where GPT-6.1 Terra sits among the 61 ranked models on each benchmark (right is best); the tick is the field median.

Cost and speed

against 61 ranked models

Cost per task

#15 cheapest of 41

$0.09at max

Time per task

#15 quickest of 40

8.9 minat max

Output speed

#29 fastest of 52

111 tok/sat max

Time to first token

#47 quickest of 52

4.6 minat max

Output tokens per task

#12 fewest of 44

60kat max

Token price

$0.074 per 1M tokens at API prices$0.0071 on ChatGPT Pro 10x

98.2% cache read · 1.66% fresh input · 0.02% cache write · 0.17% output

Measured from T3 Code usage in Codex, Oct 27 to Nov 2, high confidence. One app’s users, not everyone’s. $0.099 at the standard 97 / 2.5 / 0.5 mix.

This ranking’s benchmarks

10 of 10 measured

agentic

AutomationBench-AA

241 results
  1. #39max of 24160.2%
  2. #43xhigh of 24159.9%
  3. #50high of 24158.5%
  4. #56medium of 24157.8%
  5. #64low of 24156.2%
  6. #89none of 24151.0%

Leader: Gemini 4 Carbon · 77.8%

agentic

AA-Briefcase v1.1

247 results
  1. #63max of 2471402
  2. #77xhigh of 2471333
  3. #91high of 2471264
  4. #98none of 2471228
  5. #103medium of 2471191
  6. #133low of 2471030

Leader: Sonnet 5.5 · 1814

reasoning

CritPt v2 Hard Subset

100 results
  1. #9max of 10064.5%
  2. #15high of 10060.5%
  3. #20xhigh of 10057.5%
  4. #24medium of 10056.0%
  5. #31low of 10048.5%
  6. #51none of 10032.5%

Leader: GPT-6 Astra · 71.5%

coding

FrontierCode 2.0-AA

97 results
  1. #4max of 9742.3%
  2. #13high of 9737.5%
  3. #14xhigh of 9736.9%
  4. #21medium of 9734.5%
  5. #23none of 9733.4%
  6. #39low of 9724.5%

Leader: Opus 5.5 · 46.4%

economics

GDP.pdf

240 results
  1. #16max of 24028.6%
  2. #18medium of 24028.4%
  3. #19high of 24028.0%
  4. #28xhigh of 24026.6%
  5. #37low of 24025.6%
  6. #53none of 24023.2%

Leader: Muse Wonder Full · 32.6%

reasoning

HLE-Diamond

142 results
  1. #21max of 14247.3%
  2. #27xhigh of 14242.3%
  3. #33high of 14235.4%
  4. #38medium of 14231.3%
  5. #48low of 14224.9%
  6. #83none of 14214.5%

Leader: Gemini 4 Carbon · 69.1%

knowledge

AA-Omniscience v1.1 Accuracy

111 results
  1. #32xhigh of 11148.0%
  2. #33max of 11147.6%
  3. #34medium of 11147.4%
  4. #35high of 11147.3%
  5. #39low of 11145.6%
  6. #51none of 11140.7%

Leader: Fable 5.1 · 68.4%

knowledge

AA-Omniscience v1.1 Non-hallucination

111 results
  1. #31max of 11165.5%
  2. #35xhigh of 11163.2%
  3. #36high of 11163.0%
  4. #42medium of 11160.4%
  5. #47low of 11158.4%
  6. #88none of 11122.9%

Leader: Gemini 4 Carbon · 95.8%

reasoning

Terminal-Bench-Science-AA

115 results
  1. #9max of 11557.6%
  2. #20xhigh of 11541.9%
  3. #28high of 11533.3%
  4. #33medium of 11524.8%
  5. #35none of 11524.3%
  6. #61low of 1157.6%

Leader: Gemini 4 Carbon · 64.8%

coding

Terminal-Bench v4-AA

238 results
  1. #15max of 23855.6%
  2. #27xhigh of 23846.5%
  3. #35high of 23841.9%
  4. #50medium of 23832.3%
  5. #58none of 23826.8%
  6. #83low of 23815.2%

Leader: Kimi K3.1 · 67.2%

All 84 benchmarks

show 74 more