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How smart is GPT-4o (Aug 2024)?

73 SI-IQ · 90% interval 68–77
Rank 77 of 80 ranked models · Plausible rank range 74–80

GPT-4o (Aug 2024) is a model from OpenAI, released on Aug 6, 2024. Its SI-IQ is 73 (90% interval 68–77), estimated from 8 benchmark results by 3 independent evaluators. Its strongest area is Knowledge and its weakest is Math.

Facts

Developer: OpenAI
Released: Aug 6, 2024
Access: API access
Benchmarks used: 8 results from 3 evaluators
API price: $2.50 input / $10 output per 1M tokens (developer's price list, Oct 18, 2026)
Context window: 128,000 tokens

Ability by area (SI-IQ, 90% interval)

Every benchmark result we used

Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.

Benchmark	Area	Score	Implied SI-IQ	Evaluated by	As listed by the source	Retrieved	Source
Chess Puzzles	Reasoning	6.0%	77	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
FrontierMath Tiers 1–3	Math	0.4%	67	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
MATH Level 5	Math	53.3%	71	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
OTIS Mock AIME 2024–2025	Math	6.4%	65	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
Aider Polyglot	Coding	23.1%	79	Aider	`gpt-4o-2024-08-06`	Oct 18, 2026	Aider LLM Leaderboards · data file
GPQA Diamond	Knowledge	49.2%	72	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
GPQA Diamond (OpenRouter run)	Knowledge	52.8%	77	OpenRouter	`openai/gpt-4o-2024-08-06` OpenAI · first-party provider (1 of 2 rows)	Oct 18, 2026	OpenRouter benchmark datasets · data file
SimpleQA Verified	Knowledge	26.0%	104	Epoch AI	`gpt-4o-2024-08-06`	Oct 18, 2026	Epoch AI Benchmarking Hub · data file
τ²-bench Airline (OpenRouter run)	Agents	43.0%	79	OpenRouter	`openai/gpt-4o-2024-08-06` OpenAI · first-party provider (1 of 1 rows)	Oct 18, 2026	OpenRouter benchmark datasets · data file

Human preference (Arena)

On the Arena leaderboard, where people vote between two anonymous answers, GPT-4o (Aug 2024) has a rating of 1,336 (1,331–1,340) from 45,499 votes (published Oct 15, 2026). Human preference is a different measure from benchmark ability and is not part of SI-IQ. Arena (Hugging Face)

Models with similar SI-IQ

Model	SI-IQ
GPT-4.1 nanoOpenAI	76	GPT-4o (Aug 2024) vs GPT-4.1 nano
GPT-4o (Nov 2024)OpenAI	69	GPT-4o (Aug 2024) vs GPT-4o (Nov 2024)
Gemma 3 27BGoogle DeepMind	77	GPT-4o (Aug 2024) vs Gemma 3 27B
GPT-4o miniOpenAI	68	GPT-4o (Aug 2024) vs GPT-4o mini
Llama 3.3 70BMeta AI	66	GPT-4o (Aug 2024) vs Llama 3.3 70B

Computed with SI-IQ method version 1.0.0. Read the full methodology

Data sources: Aider polyglot leaderboard data (Apache-2.0); Arena leaderboard dataset on Hugging Face (CC BY 4.0); Epoch AI, ‘Capabilities & benchmarking’ (CC BY 4.0); API list prices via LiteLLM's price table (MIT); each price links to the developer's pricing page; Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter..