Claude Opus 4.7 vs GPT-5.5 Pro
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Opus 4.7 | GPT-5.5 Pro |
|---|---|---|
| ARC-AGI-1verified-v1-b2e2a31b3d53 · verified_score · leader | 93.5097% of row best · percent · Claude 4.7 (High) | 96.50100% of row best · percent · GPT-5.5 Pro (High) |
| ARC-AGI-2verified-v2-326661568d5f · verified_score · leader | 75.8390% of row best · percent · Claude 4.7 (Max) | 84.58100% of row best · percent · GPT-5.5 Pro (High) |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 2 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.
Technical Differences
Side-by-Side Facts
| Field | Claude Opus 4.7 | GPT-5.5 Pro |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Family | Claude 4 | Gpt 5 5 |
| Model | Claude Opus 4.7 | GPT-5.5 Pro |
| Version | Claude Opus 4.7 | GPT-5.5 Pro |
| Lifecycle | active | active |
| Released | 2026-04-16 | 2026-04-23 |
| Knowledge cutoff | 2026-01-01 | 2025-12-01 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000,000 | 1,050,000 |
| 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) | Openai (Standard), Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, structured_outputs, tools |
15 comparable fields · 8 material differences · Pair passes the primary-source comparison gate
Claude Opus 4.7 Capabilities
GPT-5.5 Pro Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Claude Opus 4.6Anthropic | vs | Claude Opus 4.7Anthropic | family variantsimage, text |
GPT-5.4 ProOpenAI | vs | GPT-5.5 ProOpenAI | family variantsimage, text |
GPT-5.4 MiniOpenAI | vs | GPT-5.5 ProOpenAI | family variantsimage, text |
Claude Opus 4.5Anthropic | vs | Claude Opus 4.7Anthropic | family variantsimage, text |
Claude Opus 4.7Anthropic | vs | Claude Sonnet 4.6Anthropic | family variantsimage, text |
Claude Opus 4.7Anthropic | vs |  Qwen3.7 FlashQwen | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | Qwen3.7 MaxQwen | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | Grok 4.3xAI | cross-developer peersimage, text |
Claude Opus 4.6Anthropic | vs | GPT-5.5 ProOpenAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | GPT-5.4OpenAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | GPT-5.4 ProOpenAI | cross-developer peersimage, text |
Claude Opus 4.7Anthropic | vs | GPT-5.5OpenAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Opus 4.7 vs GPT-5.5 Pro FAQs
Is Claude Opus 4.7 or GPT-5.5 Pro better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Opus 4.7 and GPT-5.5 Pro, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Opus 4.7 or GPT-5.5 Pro?+
Claude Opus 4.7 is $5.00 and GPT-5.5 Pro is $30.00 per million tokens, so Claude Opus 4.7 is cheaper on this metric. Claude Opus 4.7 is $25.00 and GPT-5.5 Pro is $180.00 per million tokens, so Claude Opus 4.7 is cheaper on this metric.
Which has a larger context window, Claude Opus 4.7 or GPT-5.5 Pro?+
GPT-5.5 Pro has the larger sourced context window. Claude Opus 4.7 supports 1,000,000 and GPT-5.5 Pro supports 1,050,000.
Which performs better in benchmarks, Claude Opus 4.7 or GPT-5.5 Pro?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Claude Opus 4.7 or GPT-5.5 Pro be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Opus 4.7 is not marked open weight; GPT-5.5 Pro is not marked open weight.
Can Claude Opus 4.7 and GPT-5.5 Pro understand images?+
Claude Opus 4.7 is documented with image input; GPT-5.5 Pro is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Opus 4.7 or GPT-5.5 Pro?+
Neither has a larger sourced maximum output. Claude Opus 4.7 is 128,000 and GPT-5.5 Pro is 128,000.
Do Claude Opus 4.7 and GPT-5.5 Pro support reasoning and tool use?+
Claude Opus 4.7: reasoning, tool calling, and image input. GPT-5.5 Pro: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Opus 4.7 or GPT-5.5 Pro?+
Claude Opus 4.7 has 2 sourced provider routes; GPT-5.5 Pro has 2, a tie.
Which offers better value, Claude Opus 4.7 or GPT-5.5 Pro?+
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.