Balanced GPT-5.6 model for capable, cost-efficient everyday work
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...
Context
1.05M
1,050,000 tokens
Max output
128K
128,000 tokens
Input
$2.00
per 1M tokens
Output
$12.00
per 1M tokens
Providers
45
58 listings
Intelligence
42.1
Intelligence Index
Pricing
USD per 1M tokens · listed by OpenAI
| Token type | Standard | Over 200K context | fast mode | pro mode |
|---|---|---|---|---|
| Input | $2.00 | $4.00 | $4.00 | — |
| Output | $12.00 | $18.00 | $24.00 | — |
| Cache read | $0.20 | $0.40 | — | — |
| Cache write | $2.50 | $5.00 | — | — |
Above 272K context: $4.00 in, $18.00 out. Lowest input price across providers: Free.
Capabilities
ReasoningYes
Effort: none, low, medium, high, xhigh, max
Tool callYes
Structured outputYes
TemperatureNo
AttachmentsYes
Interleaved reasoningYes
Field: reasoning_details
Open weightsNo
ModeratedYes
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence42.1#23 of 208
- Coding76.7#6 of 112
- Agentic43.2#16 of 86
- ArenaNot scored—
Rankings
Position on each OneAtlas leaderboard
Providers · 45
58 listings
OpenAI
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)
Merge Gateway
Amazon BedrockRequesty
AI/ML API
AIHubMix
Ofox
302.AI
OpenCode
Venice AI
OrcaRouter
ZenMux
AbacusCortecs
Azure
Azure Cognitive Services
DigitalOcean
Impossibl
Cloudflare AI Gateway
CommandCode
Prime Inference
CrossModel
Kenari
Neon
OpperSAP AI Core
Perplexity Agent
Standard Compute
Vivgrid
GitHub Copilot
LowRouter
Databricks
GitLab Duo
Snowflake Cortex
Pioneer
routing.run
Aixy
Xpersona
AI-ROUTER| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 302.AI | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| 302.AI | gpt-5.6-terra-pro | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Abacus | gpt-5.6-terra | 1M | — | 128K | $2.00 | $12.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| AI-ROUTER | gpt-5.6-terra | 1.05M | 922K | 128K | $2.50 | $15.00 | — | $0.25 | $3.13 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| AI/ML API | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| AI/ML API | openai/gpt-5.6-terra-pro | 1.05M | 922K | 128K | $2.12 | $12.70 | — | $0.21 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| AIHubMix | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Aixy | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Amazon Bedrock | global.openai.gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Amazon Bedrock | openai.gpt-5.6-terra | 1.05M | 922K | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Amazon Bedrock | in.openai.gpt-5.6-terra | 1.05M | 922K | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Amazon Bedrock | us.openai.gpt-5.6-terra | 1.05M | 922K | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Azure | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Azure Cognitive Services | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Cloudflare AI Gateway | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| CommandCode | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Cortecs | gpt-5.6-terra | 1.05M | 922K | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| CrossModel | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Databricks | databricks-gpt-5-6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| DevPass (LLM Gateway) | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| DigitalOcean | openai-gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Eden AI | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| GitHub Copilot | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| GitLab Duo | duo-chat-gpt-5-6-terra | 1.05M | 922K | 128K | Free | Free | — | Free | Free | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Impossibl | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Kenari | gpt-5-6-terra | 1.05M | — | 128K | $2.40 | $14.29 | — | — | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Kilo Gateway | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Kilo Gateway | openai/gpt-5.6-terra-pro | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| LLM Gateway | aws-mantle/gpt-5.6-terra | 922K | — | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| LLM Gateway | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| LLM Gateway | azure/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| LowRouter | auto/openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Merge Gateway | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| NanoGPT | openai/gpt-5.6-terra | 1.05M | 1.05M | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| NanoGPT | openai/gpt-5.6-terra-pro | 1.05M | 1.05M | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Neon | gpt-5-6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Ofox | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| OpenAI | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| OpenCode | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Opper | gpt-5.6-terra | 1M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| OrcaRouter | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Perplexity Agent | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Pioneer | gpt-5.6-terra | 1.05M | 922K | 128K | $2.50 | $15.00 | — | $0.25 | $3.13 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Prime Inference | openai/gpt-5.6-terra | 1.05M | — | 128K | $2.50 | $15.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Prime Inference | openai/gpt-5.6-terra-pro | 1.05M | — | 128K | $2.50 | $15.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Requesty | gpt-5.6-terra@eu | 1.05M | 922K | 128K | $2.20 | $13.20 | — | $0.22 | $2.75 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Requesty | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| routing.run | gpt-5.6-terra | 1M | 922K | 128K | $1.50 | $9.00 | — | — | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| SAP AI Core | gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Snowflake Cortex | openai-gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Standard Compute | openai/gpt-5.6-terra | 1.05M | 850K | 50K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Venice AI | openai-gpt-56-terra-pro | 1M | — | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Venice AI | openai-gpt-56-terra | 1M | — | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Vercel AI Gateway | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | Yes | Jul 9, 2026 |
| Vercel AI Gateway | openai/gpt-5.6-terra-fast | 1.05M | 922K | 128K | $4.00 | $24.00 | — | $0.40 | $5.00 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| Vivgrid | gpt-5.6-terra | 1.05M | 922K | 128K | $2.50 | $15.00 | — | $0.25 | $3.13 | — | — | Yes | Yes | Yes | Yes | Jul 9, 2026 |
| Xpersona | gpt-5.6-terra | 372K | — | 128K | $1.50 | $2.00 | $2.00 | $0.15 | — | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |
| ZenMux | openai/gpt-5.6-terra | 1.05M | 922K | 128K | $2.00 | $12.00 | — | $0.20 | $2.50 | — | — | Yes | Yes | Yes | No | Jul 9, 2026 |