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Inception · released 2026-09-08

Mercury 2.5

Measured on 44 benchmarks.

5.5

#89 of 98 models

includes estimates: 45% of the mix is measured for this model

Strengths

  • Mercury 2.5
  • 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%2.4% est.#78 of 98
  2. Terminal-Bench v4-AA10%0.0%#79 of 98
  3. AA-Briefcase v1.115%378#87 of 98
  4. AutomationBench-AA5%2.4%#85 of 98
  5. Terminal-Bench-Science-AA15%0.5% est.#58 of 98
  6. HLE-Diamond10%5.1%#86 of 98
  7. CritPt v2 Hard Subset10%4.2% est.#82 of 98
  8. AA-Omniscience v1.1 Accuracy10%17.4% est.#88 of 98
  9. AA-Omniscience v1.1 Non-hallucination5%41.9% est.#65 of 98
  10. GDP.pdf5%3.6%#83 of 98

Bars show where Mercury 2.5 sits among the 98 ranked models on each benchmark (right is best); the tick is the field median.

Cost and speed

against 98 ranked models

Output speed

#2 fastest of 79

576 tok/s

Time to first token

#25 quickest of 79

2.4s

Token price

$0.028 per 1M tokens at API prices

97.0% cache read · 2.50% fresh input · 0.00% cache write · 0.50% output

Assumed mix: no measured T3 Code usage for this model.

Not measured for Mercury 2.5: cost per task, time per task, output tokens per task (no published API price yet).

This ranking’s benchmarks

5 of 10 measured

agentic

AutomationBench-AA

245 results
  1. #199default of 2452.4%

Leader: Gemini 4 Carbon · 77.8%

agentic

AA-Briefcase v1.1

250 results
  1. #211default of 250378

Leader: Sonnet 5.5 · 1813

economics

GDP.pdf

243 results
  1. #198default of 2433.6%

Leader: Muse Wonder Full · 32.6%

reasoning

HLE-Diamond

153 results
  1. #131default of 1535.1%

Leader: Gemini 4 Carbon · 69.1%

coding

Terminal-Bench v4-AA

241 results
  1. #218default of 2410.0%

Leader: Kimi K3.1 · 67.2%

All 44 benchmarks

show 39 more