Benchmark Almanac

Nexus

Llama 3.1-405B 58.7% leads since July 2024
Llama 3.1-405B 58.7% leads since July 2024
Dropped

Models write function calls for queries over real-world APIs, including nested and parallel calls. Scoring is the function calling success rate.

Nexusflow released 8 of its 9 tasks and kept one internal to limit overfitting.

Made by
Nexusflow
Released
December 2023
Kind
Function calling
Level
University
Scored
Checked automatically
Answers
Code
Tasks
Public, plus a private test set
Strongest model tested
Llama 3.1-405B #162 on the capability index
Last in a launch post
July 2024, dropped before it saturated
Last model added
November 2024
Scores refreshed
November 12th, 2026
3
Models scored in lab cards
1
Launch post lists it, from 1 lab
6
System cards report it, from 1 lab

Llama 3.1-405B leads with 58.7% among models released by July 2024

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

GPT-4 Turbo leads with 54.2% across all independent runs

Best score per model across the official leaderboard, Epoch AI’s own runs and any board Epoch AI copied. Each bar and row names its source.

Llama 3.1-405B leads with 58.7%, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

The newest model with a score here came out in July 2024, and nobody has reported a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Llama 3.1-405B 58.7%
  2. 2 Llama 3.1-70B 56.7%
  3. 3 Llama 3.1-8B 38.5%

Source: Labs’ model cards

Source: Official Nexus leaderboard

Sources: Labs’ model cards and official Nexus leaderboard

#ModelScoreSettingDateSource
1 Llama 3.1-405B 58.7% Jul 2024 Lab model card
2 Llama 3.1-70B 56.7% Jul 2024 Lab model card
3 Llama 3.1-8B 38.5% Jul 2024 Lab model card
#ModelScoreSettingDateSource
1 GPT-4 Turbo Nov 2023 54.2% Nov 2023 Official leaderboard
#ModelScoreSettingDateSource
1 Llama 3.1-405B 58.7% Jul 2024 Lab model card
2 Llama 3.1-70B 56.7% Jul 2024 Lab model card
3 GPT-4 Turbo Nov 2023 54.2% Nov 2023 Official leaderboard
4 Llama 3.1-8B 38.5% Jul 2024 Lab model card

The benchmark's own leaderboard has 3 entries, 1 of them models we track. Switch the scores above to rank them together.

Number one over time Number one over time 2 models have held number one with claims included since its release in December 2023

Lab claims count from the day the card came out, independent runs from the model’s release.

Meta
Lab claims Not tested since Nov 2024

Source: Labs’ model cards

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2024 2025 Near the ceiling (85%) Llama 3.1-405B GPT-4 Turbo 0% 20% 40% 60% 80% 100% 2024 2025 Near the ceiling (85%) Llama 3.1-405B

Sources: Official Nexus leaderboard and labs’ model cards

No launch post has listed it since July 2024

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

Meta
DateLaunch postScoreAs the post writes it
Jul 23, 2024 Llama 3.1-405B 58.7 Nexus

6 system cards report it, from 1 lab

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Nov 23, 2024 Llama 3.1-8B technical report 38.5 Nexus, post-trained (Table 2, Table 22) Capabilities
Nov 23, 2024 Llama 3.1-70B technical report 56.7 Nexus, post-trained (Table 2, Table 22) Capabilities
Nov 23, 2024 Llama 3.1-405B technical report 58.7 Nexus, post-trained (Table 2, Table 22) Capabilities
Jul 23, 2024 Llama 3.1-8B model card 38.5 Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) Capabilities
Jul 23, 2024 Llama 3.1-70B model card 56.7 Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) Capabilities
Jul 23, 2024 Llama 3.1-405B model card 58.7 Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) Capabilities

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