GPT-5.6 API
Choose the right GPT-5.6 tier
All three variants use the same OpenAI-compatible integration. Switch capability and cost with one exact model ID.
GPT-5.6 pricing
Live EvoLink group prices, expressed in USD first and Credits second, with OpenAI official prices and savings shown alongside every rate.
Token cost estimator
Cached and cache-write tokens are excluded from ordinary input to prevent double counting.Estimated request cost
GPT-5.6 SolLong-context rates apply to the entire request when total prompt tokens exceed 272,000.
EvoLink vs OpenAI direct
Same token mix, selected tier, and context band.Request budget guide
Estimate how far your credits go with the current token mix.Good for a first validation.
Good for sustained testing.
Good before production integration.
Model pricing
| Model | Context band | Uncached input | Cache read | Cache write | Output |
|---|---|---|---|---|---|
GPT-5.6 Solgpt-5.6-sol | ≤ 272K prompt tokens | $4.500 / 1M-10% 306 cr / 1M$5.000OpenAI official | $0.450 / 1M-10% 30.6 cr / 1M$0.500OpenAI official | $5.625 / 1M-10% 382.5 cr / 1M$6.250OpenAI official | $27.000 / 1M-10% 1836 cr / 1M$30.000OpenAI official |
GPT-5.6 Solgpt-5.6-sol | > 272K prompt tokens | $9.000 / 1M-10% 612 cr / 1M$10.000OpenAI official | $0.900 / 1M-10% 61.2 cr / 1M$1.000OpenAI official | $11.250 / 1M-10% 765 cr / 1M$12.500OpenAI official | $40.500 / 1M-10% 2754 cr / 1M$45.000OpenAI official |
GPT-5.6 Terragpt-5.6-terra | ≤ 272K prompt tokens | $2.250 / 1M-10% 153 cr / 1M$2.500OpenAI official | $0.225 / 1M-10% 15.3 cr / 1M$0.250OpenAI official | $2.814 / 1M-10% 191.3 cr / 1M$3.125OpenAI official | $13.500 / 1M-10% 918 cr / 1M$15.000OpenAI official |
GPT-5.6 Terragpt-5.6-terra | > 272K prompt tokens | $4.500 / 1M-10% 306 cr / 1M$5.000OpenAI official | $0.450 / 1M-10% 30.6 cr / 1M$0.500OpenAI official | $5.627 / 1M-10% 382.6 cr / 1M$6.250OpenAI official | $20.250 / 1M-10% 1377 cr / 1M$22.500OpenAI official |
GPT-5.6 Lunagpt-5.6-luna | ≤ 272K prompt tokens | $0.900 / 1M-10% 61.2 cr / 1M$1.000OpenAI official | $0.092 / 1M-9% 6.2 cr / 1M$0.100OpenAI official | $1.125 / 1M-10% 76.5 cr / 1M$1.250OpenAI official | $5.400 / 1M-10% 367.2 cr / 1M$6.000OpenAI official |
GPT-5.6 Lunagpt-5.6-luna | > 272K prompt tokens | $1.800 / 1M-10% 122.4 cr / 1M$2.000OpenAI official | $0.183 / 1M-9% 12.4 cr / 1M$0.200OpenAI official | $2.250 / 1M-10% 153 cr / 1M$2.500OpenAI official | $8.100 / 1M-10% 550.8 cr / 1M$9.000OpenAI official |
GPT-5.6 Sol
GPT-5.6 Terra
GPT-5.6 Luna
EvoLink rates use your current group. The struck-through OpenAI official rate uses the same model, token role, and context multiplier for an exact comparison.
GPT-5.6 API — Sol・Terra・Luna
1 つの EvoLink API キーで 3 つの GPT-5.6 モデルを利用できます。最大能力の Sol、バランス型の Terra、高速で低コストな Luna から選択できます。
Four-part prompt caching
Uncached input, cache reads, cache writes, and output are settled separately from the final usage object. Cache writes are not charged again as ordinary input.
Long-context threshold
At more than 272K prompt tokens, input and both cache roles use 2x rates while output uses 1.5x rates for the entire request.
GPT-5.6 vs 他のテキストモデル
EvoLink選択中の GPT-5.6 ティアと同等のフロンティアテキストモデルを、1M tokens あたりの EvoLink 価格で比較します。
| 機能 | GPT-5.6 Sol | Claude Opus 4.8 | Gemini 3.1 Pro |
|---|---|---|---|
| EvoLink price / 1M (input / output) | $4.5 / $27 | $4.5 / $22.5 | $1.68 / $10.08 |
| Context window | 1.05M | 1M | 1M |
| Prompt caching | Cache read + cache write | Cache read + cache write | Context caching |
| Best for | Hard reasoning, coding agents, and high-value workflows | Anthropic flagship for deep reasoning, coding, and long-running agents. | Google flagship for multimodal reasoning and large-context workloads. |
基本コンテキスト料金は現在の EvoLink ユーザーグループに基づきます。ログイン時はグループ料金、未ログイン時は Default 料金を表示します。長文コンテキスト倍率は各モデルの Pricing で確認できます。
EvoLink の他の GPT モデル
Other text models
GPT-5.6 API - FAQ
Which model IDs are available?
Use gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna. A generic gpt-5.6 alias is not available.
How is cached input billed?
Cache reads and cache writes are separate token segments. Neither segment is billed again as ordinary input.
When do long-context rates apply?
When total prompt tokens exceed 272,000, the whole request uses the long-context multipliers shown in the pricing table.
Use GPT-5.6 through the EvoLink API
Chat Completions and Responses are both supported. Change only the exact model ID to switch tiers.
POST /v1/chat/completionscurl https://api.evolink.ai/v1/chat/completions \
-H "Authorization: Bearer $EVOLINK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-sol",
"messages": [{"role": "user", "content": "Plan a production rollout."}],
"reasoning_effort": "high",
"prompt_cache_key": "rollout-v1"
}'POST /v1/responsescurl https://api.evolink.ai/v1/responses \
-H "Authorization: Bearer $EVOLINK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.6-sol",
"input": "Analyze this architecture and list the main risks.",
"reasoning": {"effort": "high"},
"max_output_tokens": 4000
}'