GPT-4o vs GPT-5
At a Glance
| Compare |  GPT-4oOpenAI | GPT-5OpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v4.4 | #43 of 570.0 score · 1/3 sources · single-source provisional · missing LiveBench, ARC-AGI-2 · full-core range 0.0–66.7 | UnrankedNot in the 57-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $1.25Openrouter ↗ · Oct 19, 2026 | $0.625Openrouter ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $5.00Openrouter ↗ · Oct 19, 2026 | $5.00Openrouter ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 128K | 400K |
| Model facts checked | Aug 29, 2026View model evidence → | Sep 3, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | GPT-4o | GPT-5 |
|---|---|---|
| Aider Polyglotpolyglot-225-5dc9490bb35f · pass_rate_2 · leader | 23.1126% of row best · percent · diff; aider 0.70.1.dev | 88.00100% of row best · percent · diff; aider 0.86.2.dev; reasoning high · 11,659.7 output tokens / case |
| LMArena Text Arenatext-2026-10-15-0ebb411abf00 · arena_rating · leader | 1,282.5091% of row best · rating · gpt-4o-2024-08-06; 95% CI [1278.31275237, 1286.69364786]; votes 45499; rank 267 | 1,406.18100% of row best · rating · gpt-5-high; 95% CI [1401.76102728, 1410.60028213]; votes 31722; rank 146 |
| LMArena Vision Arenavision-2026-10-09-0ebb411abf00 · arena_rating · leader | 1,064.5288% of row best · rating · gpt-4o-2024-08-06; 95% CI [1052.04133780, 1077.00060680]; votes 3376; rank 136 | 1,208.24100% of row best · rating · gpt-5-high; 95% CI [1201.43993030, 1215.03686763]; votes 34470; rank 89 |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 3 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | GPT-4o | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Family | Gpt 4o | Gpt 5 |
| Model | GPT-4o | GPT-5 |
| Version | GPT-4o | GPT-5 |
| Lifecycle | active | active |
| Released | Unknown | 2025-08-07 |
| Knowledge cutoff | 2023-10-01 | 2024-09-30 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 128K | 400K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Openai (Standard), Openrouter (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, tools | chat, generation, reasoning, structured_outputs, tools |
GPT-4o Capabilities
GPT-5 Capabilities
Related Comparisons
All image comparisons →| A | Pair | B | Context |
|---|---|---|---|
Claude Haiku 4.5Anthropic | vs | GPT-4oOpenAI | cross-developer peersimage, text |
 Gemma 4 E2BGoogle DeepMind | vs | GPT-4oOpenAI | cross-developer peersimage, text |
Gemma 4 E4BGoogle DeepMind | vs | GPT-4oOpenAI | cross-developer peersimage, text |
| vs | GPT-4oOpenAI | cross-developer peersimage, text | |
GPT-4oOpenAI | vs | GPT-5.2OpenAI | family variantsimage, text |
GPT-4oOpenAI | vs | gpt-oss-120bOpenAI | family variantstext |
GPT-4oOpenAI | vs | gpt-oss-20bOpenAI | family variantstext |
GPT-4oOpenAI | vs |  SonarPerplexity | cross-developer peerstext |
GPT-4oOpenAI | vs |  GLM-OCRZ.ai | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
GPT-4o vs GPT-5 FAQs
Is GPT-4o or GPT-5 better for coding?+
GPT-5 leads the current coding subset with 1 benchmark win to 0. This describes only the matched benchmark rows shown above.
Which is cheaper, GPT-4o or GPT-5?+
GPT-4o is $1.25 and GPT-5 is $0.625 per million tokens, so GPT-5 is cheaper on this metric. GPT-4o is $5.00 and GPT-5 is $5.00 per million tokens, so they are tied on this metric.
Which has a larger context window, GPT-4o or GPT-5?+
GPT-5 has the larger sourced context window. GPT-4o supports 128,000 tokens and GPT-5 supports 400,000 tokens.
Which performs better in benchmarks, GPT-4o or GPT-5?+
GPT-5 leads the current overall benchmark count. The result uses 3 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can GPT-4o or GPT-5 be self-hosted?+
Both models have the same sourced self-hosting status: unsupported. GPT-4o is not marked open weight; GPT-5 is not marked open weight.
Can GPT-4o and GPT-5 understand images?+
GPT-4o is documented with image input; GPT-5 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, GPT-4o or GPT-5?+
GPT-5 has the larger sourced maximum output. GPT-4o supports 16,384 tokens and GPT-5 supports 128,000 tokens.
Do GPT-4o and GPT-5 support reasoning and tool use?+
GPT-4o: tool calling and image input. GPT-5: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, GPT-4o or GPT-5?+
GPT-4o has 2 sourced provider routes; GPT-5 has 2, a tie.
Which offers better value, GPT-4o or GPT-5?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.