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DeepSeek V4 Flash Vision Exp vs Fugu Ultra v2

Detailed technical comparison between DeepSeek V4 Flash Vision Exp (DeepSeek) and Fugu Ultra v2 (Sakana AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

DeepSeek V4 Flash Vision Exp: 0 WinsvsFugu Ultra v2: 6 Wins
Context Leader

DeepSeek V4 Flash Vision Exp

1,048,576 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

DeepSeek V4 Flash Vision Exp

$0.22 / MTok
DeepSeekactive

DeepSeek V4 Flash Vision Exp

DeepSeek V4 Flash Vision Exp is an advanced artificial intelligence model engineered by DeepSeek. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, DeepSeek V4 Flash Vision Exp represents a key architectural iteration in the DeepSeek model family. First released in 2026-08-21, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,048,576 tokens (approximately 1,398 words), DeepSeek V4 Flash Vision Exp processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View DeepSeek V4 Flash Vision Exp Full Specs →
Sakana AIactive

Fugu Ultra v2

Fugu Ultra v2 is an advanced artificial intelligence model engineered by Sakana AI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Fugu Ultra v2 represents a key architectural iteration in the Sakana AI model family. First released in 2026-09-11, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,000,000 tokens (approximately 1,333 words), Fugu Ultra v2 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Fugu Ultra v2 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationDeepSeek V4 Flash Vision ExpFugu Ultra v2
ProviderDeepSeekSakana AI
Context Window1,048,576 tokens🏆1,000,000 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelself hostablemanaged api
Production StabilityBeta Access (est.)Beta Access (est.)
API AvailableYesYes
Released Date2026-08-212026-09-11

API Pricing Comparison

Input Price per Million Tokens

DeepSeek V4 Flash Vision Exp

$0.22

Fugu Ultra v2

$5.00

Output Price per Million Tokens

DeepSeek V4 Flash Vision Exp

$0.65

Fugu Ultra v2

$30.00

💡 Cost Ratio: DeepSeek V4 Flash Vision Exp is 23.2x cheaper per input token than Fugu Ultra v2.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
74.2%vs87.2%+13.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆
HumanEvalPython coding & logic synthesis
70.4%vs86.4%+16.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆
MATHComplex mathematical problem solving
43.6%vs67.6%+24.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆
GPQAGraduate-level expert reasoning
31.0%vs49.0%+18.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆
HellaSwagCommonsense reasoning and inference
78.2%vs88.2%+10.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆
MT-BenchMulti-turn conversation flow quality
8.1%vs9.1%+1.0% Fugu Ultra v2
DeepSeek V4 Flash Vision Exp
Fugu Ultra v2 🏆

DeepSeek V4 Flash Vision Exp Quirks & Gotchas

No developer gotchas reported.

Fugu Ultra v2 Quirks & Gotchas

No developer gotchas reported.

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