Nexus
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
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:
- Claude Fable 5.2
-
Gemini 4 Carbon
- GPT-6 Astra
- Claude Opus 5.5
- and 16 more
- 1
Llama 3.1-405B 58.7%
- 2
Llama 3.1-70B 56.7%
- 3
Llama 3.1-8B 38.5%
Source: Labs’ model cards
- 1 GPT-4 Turbo Nov 2023 54.2%
Source: Official Nexus leaderboard
- 1
Llama 3.1-405B 58.7%
- 2
Llama 3.1-70B 56.7%
- 3 GPT-4 Turbo Nov 2023 54.2%
- 4
Llama 3.1-8B 38.5%
Sources: Labs’ model cards and official Nexus leaderboard
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | | 58.7% | Jul 2024 | Lab model card | |
| 2 | | 56.7% | Jul 2024 | Lab model card | |
| 3 | | 38.5% | Jul 2024 | Lab model card |
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | GPT-4 Turbo Nov 2023 | 54.2% | Nov 2023 | Official leaderboard |
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | | 58.7% | Jul 2024 | Lab model card | |
| 2 | | 56.7% | Jul 2024 | Lab model card | |
| 3 | GPT-4 Turbo Nov 2023 | 54.2% | Nov 2023 | Official leaderboard | |
| 4 | | 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.
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.
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.
| Date | Launch post | Score | As the post writes it |
|---|---|---|---|
| Jul 23, 2024 | 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.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| Nov 23, 2024 | | 38.5 | Nexus, post-trained (Table 2, Table 22) | Capabilities |
| Nov 23, 2024 | | 56.7 | Nexus, post-trained (Table 2, Table 22) | Capabilities |
| Nov 23, 2024 | | 58.7 | Nexus, post-trained (Table 2, Table 22) | Capabilities |
| Jul 23, 2024 | | 38.5 | Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) | Capabilities |
| Jul 23, 2024 | | 56.7 | Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) | Capabilities |
| Jul 23, 2024 | | 58.7 | Nexus (0-shot), macro_avg/acc, instruction tuned (Instruction tuned models table) | Capabilities |
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