developer_tools
Best LLM for Function Calling
Compare models for reliable tool use, function selection, and multi-step API orchestration.
Provisional leader
claude-opus-4-6
Best current option from the available benchmark evidence, but not yet a strong winner claim.
external/anthropic/claude-opus-4-6
21.8%
Score
24.0%
Confidence
19
Evidence
$10.00
per 1M tokens
Ranked Models
30
Evidence Quality
80%
Evidence Points
19
Top Signal
OpenHands Index: average_score_pct
All Ranked Models
| Rank | Model | Score |
|---|---|---|
| 🥇 | claude-opus-4-6 Strong on OpenHands Index average_score_pct and OpenHands Issue Resolution issue_resolution_score_pct | 21.8% |
| 🥈 | gpt-5-2025-08-07 Strong on GAIA Results Public score and Aider Polyglot Leaderboard percent_correct_pct | 19.7% |
| #8 | claude-sonnet-4 Strong on Galileo Agent Leaderboard v2 Avg AC and SWE-bench Verified Leaderboard swe_verified_resolved_pct | 16.8% |
| #9 | claude-sonnet-4.6 Strong on OpenHands Issue Resolution issue_resolution_score_pct and Vals SWE-bench overall_accuracy_pct | 15.9% |
| #10 | gemini-3-pro-preview Strong on SWE-bench Verified Leaderboard swe_verified_resolved_pct and BFCL Multi-turn Official Multi Turn Acc | 15.0% |
| #11 | kimi-k2.5-thinking Strong on Vals LiveCodeBench overall_accuracy_pct and Vals SWE-bench overall_accuracy_pct | 14.3% |
| #14 | GLM-5 Strong on OpenHands Issue Resolution issue_resolution_score_pct and Sonar Java Quality Leaderboard functional_skill_pct | 13.4% |
| #15 | qwen-2.5-72b-instruct Strong on Galileo Agent Leaderboard v2 Avg AC and Aider Code Editing Leaderboard percent_correct_pct | 13.0% |
| #16 | gpt-4o Strong on τ-bench Airline (Official README) tau_airline_pass1_pct and JSONSchemaBench Leaderboard medium_schema_compliance_pct | 13.0% |
| #17 | Grok-4-0709 Strong on Galileo Agent Leaderboard v2 Avg AC and Galileo Agent Leaderboard v2 Avg TSQ | 12.9% |
| #19 | gpt-4.1-20250414 Strong on Galileo Agent Leaderboard v2 Avg AC and Galileo Agent Leaderboard v2 Avg TSQ | 12.3% |
| #20 | Kimi K2 Thinking Strong on SWE-bench Verified Leaderboard swe_verified_resolved_pct and Sonar Java Quality Leaderboard functional_skill_pct | 12.2% |
| #21 | o3-20250416 Strong on Aider Polyglot Leaderboard percent_correct_pct and SWE-bench Verified Leaderboard swe_verified_resolved_pct | 11.9% |
| #22 | gemini-2.5-pro Strong on Galileo Agent Leaderboard v2 Avg AC and SWE-bench Verified Leaderboard swe_verified_resolved_pct | 11.8% |
| #23 | gpt-5.2-2025-12-11 Strong on SWE-bench Verified Leaderboard swe_verified_resolved_pct and Vals SWE-bench overall_accuracy_pct | 11.5% |
| #24 | minimax-m2.1 Strong on Vals SWE-bench overall_accuracy_pct and Vals LiveCodeBench overall_accuracy_pct | 10.8% |
| #28 | gpt-4o-20241120 Strong on Aider Code Editing Leaderboard percent_correct_pct and DuckDB NSQL Leaderboard all_execution_accuracy | 10.4% |
| #29 | gpt-4o-2024-05-13 Strong on Aider Code Editing Leaderboard percent_correct_pct and RepoQA Official Results overall_average_pass_at_1_pct | 10.2% |
| #30 | gemini-3.1-pro-preview Strong on Vals SWE-bench overall_accuracy_pct and Vals LiveCodeBench overall_accuracy_pct | 9.8% |
| #31 | o4-mini Strong on Aider Polyglot Leaderboard percent_correct_pct and Vals LiveCodeBench overall_accuracy_pct | 9.4% |
| #32 | gpt-5-mini-2025-08-07 Strong on Vals LiveCodeBench overall_accuracy_pct and SWE-bench Verified Leaderboard swe_verified_resolved_pct | 9.3% |
| #34 | gpt-4o-2024-08-06 Strong on Aider Code Editing Leaderboard percent_correct_pct and GAIA Results Public score | 8.9% |
| #35 | Kimi-K2-Instruct Strong on Galileo Agent Leaderboard v2 Avg AC and Galileo Agent Leaderboard v2 Avg TSQ | 8.9% |
| #36 | claude-opus-4-5-20251101 Strong on SWE-bench Verified Leaderboard swe_verified_resolved_pct and Vals Terminal-Bench 2 overall_accuracy_pct | 8.7% |
| #37 | deepseek-r1 Strong on Aider Polyglot Leaderboard percent_correct_pct and Sonar Java Quality Leaderboard functional_skill_pct | 8.5% |
| #40 | grok-4-1-fast-reasoning Strong on BFCL Multi-turn Official Multi Turn Acc and BFCL Memory Official Memory Acc | 8.2% |
| #42 | gemini-2.5-flash Strong on Galileo Agent Leaderboard v2 Avg AC and Galileo Agent Leaderboard v2 Avg TSQ | 8.0% |
| #43 | gpt-4.1-mini-20250414 Strong on Galileo Agent Leaderboard v2 Avg AC and Galileo Agent Leaderboard v2 Avg TSQ | 8.0% |
| #44 | glm-4.7 Strong on Vals LiveCodeBench overall_accuracy_pct and Vals SWE-bench overall_accuracy_pct | 7.8% |
| #46 | deepseek-v3 Strong on Galileo Agent Leaderboard v2 Avg AC and BigCodeBench Official bigcodebench_complete_pct | 7.5% |
Head-to-Head: #1 vs #2
#1
Top Pickclaude-opus-4-6
Strong on OpenHands Index average_score_pct and OpenHands Issue Resolution issue_resolution_score_pct
Conf 24.0%
#2
gpt-5-2025-08-07
Strong on GAIA Results Public score and Aider Polyglot Leaderboard percent_correct_pct
Conf 23.3%
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