OpenAI: GPT-5.6 Terra
Released Jul 9, 2026Try it on:
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Best overall rank
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Across all subsets · overall
Total arena votes
0
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Providers on OR
0
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First seen
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Pricing
Per token
- Input (per 1M)
- $2.50
- Output (per 1M)
- $15.00
- Cache Read (per 1M)
- $0.250
- Cache Write (per 1M)
- $3.13
Per unit
- Web search
- $0.010/call
Capabilities
Modality
text+image+file->textContext
1.1M tokens
Tokenizer
GPT
Knowledge cutoff
2026-02-16
Max output
128K tokens
Moderation
Unmoderated
Supported parameters
include_reasoning
max_completion_tokens
max_tokens
reasoning
reasoning_effort
response_format
seed
structured_outputs
tool_choice
tools
Providers
No provider endpoint data yet.
Per-category ranks
No leaderboard entries for this model.