Fugu Max vs GPT-5.6 Terra
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by Sakana AI
|
by OpenAI
|
|---|---|---|
| Overview | ||
| Status | Current mid tier | Current flagship |
| Released | ||
| Pricing per million tokens | ||
| Input | $2.00/Mtok | $2.00/Mtok |
| Output | $6.00/Mtok | $12.00/Mtok |
| Blended avg | $3.00/Mtok | $4.50/Mtok |
| Cached input | $0.250/Mtok | $0.200/Mtok |
| Price basis | Sakana AI Token Plan (pay-as-you-go) list price, per 1M tokens, flat at any context length — the card states 'Fixed rates regardless of context length', unlike the context-tiered Fugu Ultra. web_search and web_fetch tool calls are billed separately at $0.007 per call and are not part of the per-token rate. The monthly subscription tiers (Standard $20, Pro $100, Max $200) bundle usage allowances rather than per-token rates and are not the list price. Sakana states the service is not offered to users in EU or EEA member states. | — |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
textimage
|
| Benchmarks sources: n/a / Vellum LLM Leaderboard | ||
| Avg benchmark score | — | 87.7 |
| Perf / dollar | — | 19.5 |
| GPQA Diamond | — | 92.9 |
| Terminal-Bench 2.1 | — | 82.5 |
| Independent composite scores each on its own scale — not part of the average above | ||
| AA Intelligence Index | — | 42.3 |
| AA Agentic Index | — | 43.7 |
| AA-Omniscience Index (−100–100) | — | 0.1 |
| GDPval-AA v2 | — | 1477 ELO |
| Providers | ||
| Available from |
Sakana AI — $2.00/$6.00/Mtok
|
OpenAI — $2.00/$12.00/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Fugu Max | GPT-5.6 Terra | Savings |
|---|---|---|---|
| 1M tokens | $3 | $4.5 | $1.5 (33.3%) |
| 10M tokens | $30 | $45 | $15 (33.3%) |
| 100M tokens | $300 | $450 | $150 (33.3%) |
| 1000M tokens | $3000 | $4500 | $1500 (33.3%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $3.00/Mtok blended vs $4.50 — 33.3% less on the same 50/50 token mix
- your workload re-reads context (agents, RAG, long chats): cached input costs $0.200/Mtok — 90% off its list input price
Price movement
recorded changes since we began tracking each model · last checked| Model | Changes | Latest move | Old → new $/M |
|---|---|---|---|
| Fugu Max | 0 | — no move | Stable since we began tracking — no change recorded |
| GPT-5.6 Terra | 1 | price cut on | $2.5/$15 → $2/$12/Mtok |
Summary
Fugu Max by Sakana AI costs $2.00/Mtok input and $6.00/Mtok output, with a 1M-token context window. It supports text, image input.
GPT-5.6 Terra by OpenAI costs $2.00/Mtok input and $12.00/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, Fugu Max is 33.3% cheaper than GPT-5.6 Terra.
The two aren't directly comparable on average benchmark score: GPT-5.6 Terra has published per-benchmark results, while Fugu Max does not yet.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.