Model comparison · image, text
Claude Sonnet 5 vs GPT-5.6 Terra
Symmetrical, primary-source facts with unknown values left visible. No winner is assigned without comparable measurements.
FieldAt a glance
Anthropic · activeClaude Sonnet 5Verified Aug 28, 2026
OpenAI · activeGPT-5.6 TerraVerified Aug 28, 2026
Technical differences
Side-by-side facts
| Field | Claude Sonnet 5 | GPT-5.6 Terra |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Family | Claude 5 | Gpt 5 6 |
| Model | Claude Sonnet 5 | GPT-5.6 Terra |
| Version | Claude Sonnet 5 | GPT-5.6 Terra |
| Lifecycle | active | active |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1000000 | 1050000 |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
12 comparable fields · 5 material differences · Pair passes the primary-source comparison gate
Primary benchmark evidence
Comparable performance
No protocol-matched benchmark yet.Results appear here only when both models share the same benchmark version, metric, evaluation protocol, and evidence class.
Claude Sonnet 5 capabilities
Input price$2.00
Output price$10.00
Serving providers1
Canonical IDanthropic/claude-sonnet-5
GPT-5.6 Terra capabilities
Input price$2.00
Output price$12.00
Serving providers1
Canonical IDopenai/gpt-5.6-terra
Internal comparison graph
Related comparisons
Primary evidence