Claude Opus 5 vs GPT-5.4
At a Glance
| Compare | Claude Opus 5Anthropic |  GPT-5.4OpenAI |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $5.00Anthropic ↗ · Sep 3, 2026 | $2.50Openai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | $25.00Anthropic ↗ · Sep 3, 2026 | $15.00Openai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 1,000K | 1,050K |
| Model facts checked | Aug 28, 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 | Claude Opus 5 | GPT-5.4 |
|---|---|---|
| ARC-AGI-1verified-v1-613c385b0c93 · verified_score · leader | 97.50100% of row best · percent · Claude Opus 5 (Max) | 93.6796% of row best · percent · GPT-5.4 (XHigh) |
| ARC-AGI-2verified-v2-be40992860f9 · verified_score · leader | 90.42100% of row best · percent · Claude Opus 5 (Max) | 73.9582% of row best · percent · GPT-5.4 (XHigh) |
| LMArena Document Arenadocument-2026-09-13-a64ca3b12b6e · arena_rating · leader | 1,516.27100% of row best · rating · claude-opus-5-high; 95% CI [1509.24512533, 1523.28765667]; votes 8794; rank 1 | 1,471.0097% of row best · rating · gpt-5.4; 95% CI [1464.96841782, 1477.04032901]; votes 33331; rank 14 |
| LMArena Search Arenasearch-2026-10-13-a64ca3b12b6e · arena_rating · leader | 1,241.57100% of row best · rating · claude-opus-5-high; 95% CI [1234.69644002, 1248.43868868]; votes 13285; rank 6 | 1,199.0897% of row best · rating · gpt-5.4-search; 95% CI [1193.60193056, 1204.56536227]; votes 126730; rank 21 |
| LMArena Vision Arenavision-2026-10-09-a64ca3b12b6e · arena_rating · leader | 1,319.22100% of row best · rating · claude-opus-5-high; 95% CI [1312.47954379, 1325.95953993]; votes 16665; rank 3 | 1,292.1198% of row best · rating · gpt-5.4; 95% CI [1285.63250026, 1298.59555072]; votes 22832; rank 27 |
| LiveBench2026-06-25-90f8d44da965 · overall · leader | 83.44100% of row best · percent · claude-opus-5-max-effort · 14,826 output tokens / case | 82.3899% of row best · percent · gpt-5.4-xhigh · 18,273 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 6 benchmark winsOverall lead | 0 benchmark wins |
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 | Claude Opus 5 | GPT-5.4 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Family | Claude 5 | Gpt 5 4 |
| Model | Claude Opus 5 | GPT-5.4 |
| Version | Claude Opus 5 | GPT-5.4 |
| Lifecycle | active | active |
| Released | 2026-07-24 | 2026-03-05 |
| Knowledge cutoff | Unknown | 2025-08-31 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000K | 1,050K |
| 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 | Anthropic (Standard), Deepinfra (Standard), Openrouter (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, structured_outputs, tools |
Claude Opus 5 Capabilities
GPT-5.4 Capabilities
Related Comparisons
All image comparisons →| A | Pair | B | Context |
|---|---|---|---|
Claude Fable 5.1Anthropic | vs | Claude Opus 5Anthropic | family variantsimage, text |
Claude Mythos 5.1Anthropic | vs | Claude Opus 5Anthropic | family variantsimage, text |
Claude Opus 5Anthropic | vs | Claude Opus 5.5Anthropic | family variantsimage, text |
Claude Haiku 4.5Anthropic | vs | Claude Opus 5Anthropic | family variantsimage, text |
Claude Opus 4.8Anthropic | vs | Claude Opus 5Anthropic | family variantsimage, text |
Claude Opus 5Anthropic | vs | GPT-4.1OpenAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | GPT-4.1 NanoOpenAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | GPT-5.4 ProOpenAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | GPT-5.5OpenAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | GPT-5.5 ProOpenAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs |  Qwen3.7 FlashQwen | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Opus 5 vs GPT-5.4 FAQs
Is Claude Opus 5 or GPT-5.4 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 5 and GPT-5.4, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 5 or GPT-5.4?+
Claude Opus 5 is $5.00 and GPT-5.4 is $2.50 per million tokens, so GPT-5.4 is cheaper on this metric. Claude Opus 5 is $25.00 and GPT-5.4 is $15.00 per million tokens, so GPT-5.4 is cheaper on this metric.
Which has a larger context window, Claude Opus 5 or GPT-5.4?+
GPT-5.4 has the larger sourced context window. Claude Opus 5 supports 1,000,000 tokens and GPT-5.4 supports 1,050,000 tokens.
Which performs better in benchmarks, Claude Opus 5 or GPT-5.4?+
Claude Opus 5 leads the current overall benchmark count. The result uses 6 protocol-matched benchmarks from 3 publishers; it is not a universal quality score.
Can Claude Opus 5 or GPT-5.4 be self-hosted?+
Both models have the same sourced self-hosting status: unsupported. Claude Opus 5 is not marked open weight; GPT-5.4 is not marked open weight.
Can Claude Opus 5 and GPT-5.4 understand images?+
Claude Opus 5 is documented with image input; GPT-5.4 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 5 or GPT-5.4?+
Both models have the same sourced maximum output: 128,000 tokens each.
Do Claude Opus 5 and GPT-5.4 support reasoning and tool use?+
Claude Opus 5: reasoning, tool calling, and image input. GPT-5.4: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 5 or GPT-5.4?+
Claude Opus 5 has 3 sourced provider routes; GPT-5.4 has 2, so Claude Opus 5 has broader tracked availability.
Which offers better value, Claude Opus 5 or GPT-5.4?+
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.