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Anthropic: Claude Opus 4.7 (Fast)
Anthropic
•
Claude Opus 4.7 (Max)
•
Released 
April 2026

Anthropic
Claude Opus 4.7 (Max)

A high-throughput serving mode for Anthropic's Opus 4.7 coding model, generating output up to 2.5x faster for interactive work.

Modality:
Text
Image
PDF
model ID
anthropic/claude-opus-4.7-fast
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Output Speed *

0.00
tok/s

Intelligence Index *

40.7
/ 100

Context Window *

1050000
tokens

Input price

180
Anytoken

Output price

900
Anytoken
Claude Opus 4.7 (Fast): Frontier Coding Quality at 2.5x Output Speed Claude Opus 4.7 (Fast) is a high-speed serving configuration of Anthropic's Opus 4.7, the flagship of the Claude Opus 4.x family. It is not a separate model: weights, intelligence, benchmarks and the 1M-token context window are identical to standard Opus 4.7. Fast Mode reallocates inference compute to raise output tokens per second by up to 2.5x, at a substantially higher per-token price. It targets interactive, developer-in-the-loop coding where a human is actively watching generation. Important: Anthropic deprecated Fast Mode on Opus 4.7 on June 25, 2026, directing teams to Opus 4.8 Fast Mode. Access Claude Opus models via the AnyAPI.ai API

Performance

Where the 2.5x Speed Gain Actually Applies

Claude Opus 4.7 (Fast) delivers the same frontier coding capability as standard Opus 4.7 with faster output delivery. Independent measurements put standard Opus 4.7 at roughly 61 output tokens per second, with Fast Mode pushing this toward ~150 t/s. Critically, Fast Mode raises output tokens per second but does not improve time to first token, which independent testing places around 10.65 seconds. The consequence for production: the speedup compounds during long code generations a developer is actively watching, but adds little value for autonomous background agents, batch jobs, or short responses dominated by initial latency.

Benchmarks

Opus 4.7 Coding Scores Carry Over Unchanged

Fast Mode does not alter benchmark results; scores are identical to standard Opus 4.7. On SWE-bench Verified, Opus 4.7 scores 87.6%, up from Opus 4.6's 80.8% and ahead of Gemini 3.1 Pro at 80.6%. On SWE-bench Pro it reaches 64.3% versus GPT-5.4's 57.7%, and it leads MCP-Atlas at 77.3%. The trade-off is web research: GPT-5.4 Pro leads BrowseComp at 89.3% against Opus 4.7's 79.3%. For coding and multi-tool agents Opus 4.7 is the stronger choice; for browsing-heavy research it is not.

Output Speed

*
0.00
tok/s

Intelligence Index

*
40.7
/ 100

MMLU *

Broad world knowledge and problem-solving
0
%

GPQA *

PhD-level scientific reasoning across physics, biology, chemistry.
91
%

HLE *

Adherence to multi-step structured instructions.
42
%

LiveCodeBench *

Tool-calling reliability in long agentic loops.
0
%

Technical Specifications

What the model supports

Fast Mode is a serving-level option, not a distinct model, so capabilities match standard Opus 4.7: text and image input, text output, a 1M-token context window, and adaptive extended thinking. Two production caveats dominate. First, Fast Mode raises output tokens per second but leaves time to first token unchanged, so it only pays off on long, actively-watched generations. Second, Anthropic deprecated Fast Mode on Opus 4.7 on June 25, 2026, with removal scheduled for July 24, 2026 — after which speed:"fast" requests error rather than falling back. Teams should target Opus 4.8 Fast Mode.
Verified Specifications — 
Claude Opus 4.7 (Max)
*
Input modalities
Text
Image
PDF
output modalities
Text
Context window
1050000
 tokens
Maximum output tokens
128000
Reasoning
Yes
Knowledge cutoff
April 2026
Pricing (standard)
180
 AnyTokens in
 / 
900
 AnyTokens out

Comparison

Opus 4.7 (Fast) vs Opus 4.8 (Fast): Why You Should Migrate

These are the natural comparison because Opus 4.8 Fast Mode is Anthropic's designated replacement for Opus 4.7 Fast Mode. Both run an Opus-class model at up to 2.5x standard output speed via the same speed:"fast" serving mechanism, share the 1M context window, and target latency-sensitive interactive coding. The practical decision is migration timing: Opus 4.7 Fast Mode was deprecated on June 25, 2026 and scheduled for removal on July 24, 2026, while Opus 4.8 improves benchmarks and, critically, prices Fast Mode substantially lower for equivalent speed.

Dimension
Claude Opus 4.7 (Max)
Claude Opus 4.8 (Max)
Context window *
1050000
tokens
1000000
tokens
Output speed *
0.00
tok/s
0.00
tok/s
Intelligence Index *
40.7
41.8
Input pricing
180
AnyToken
60
AnyToken
Output pricing
900
AnyToken
300
AnyToken
Knowledge cutoff *
April 2026
May 2026

Choose Claude Opus 4.7 (Fast) only if an existing pipeline is pinned to Opus 4.7 and you have not yet migrated — but be aware the mode is being removed, so this is a short-term position, not a stable choice. Choose Claude Opus 4.8 (Fast) for essentially all new interactive coding work: it is the supported path, delivers a better underlying model, and is materially cheaper for the same 2.5x speed profile. For non-interactive or autonomous background agents, standard Opus (either version) is more economical than any Fast Mode.

Limitations & Trade-offs

Where Claude Opus 4.7 (Max) falls short

1
Deprecated and being removed. Anthropic deprecated Fast Mode on Opus 4.7 on June 25, 2026, with removal scheduled for July 24, 2026, after which speed:"fast" requests on Opus 4.7 error rather than falling back. This makes Opus 4.7 (Fast) unsuitable as a long-lived production dependency. Teams building anything durable should target Opus 4.8 Fast Mode, which is the supported replacement with a better model and lower price.
2
Does not reduce time to first token. Fast Mode raises output tokens per second but leaves TTFT unchanged, independently measured around 10.65 seconds for Opus 4.7. Any workload dominated by short responses or first-token latency sees little benefit. The speedup only compounds on long, actively-watched generations, so background agents, short chat turns, and latency-first applications gain almost nothing from the premium.
3
Steep price premium and no cloud availability. Fast Mode on Opus 4.7 carried a 6x premium over standard Opus 4.7 output pricing, making it cost waste for any task where a developer walks away while the model runs. It is also unavailable on the Batch API, Priority Tier, and third-party clouds (Amazon Bedrock, Vertex AI, Microsoft Foundry), so it cannot slot into those deployment paths.
4
Tokenizer and prefill breaking changes. Opus 4.7 ships a tokenizer that can increase token counts by roughly 1.0–1.35x versus earlier Claude models, raising effective cost per task even before the Fast Mode multiplier. Prefilling assistant messages now returns a 400 error, a breaking change from Opus 4.6. Both effects apply regardless of speed mode and require validation on real traffic before migration.

Best-Fit Workloads

Where this model earns its place

01

Interactive coding sessions
‍

Fast Mode's clearest fit was developer-in-the-loop coding — interactive debugging, rapid design iteration, and live code generation where a human watches output stream. Here the 2.5x output throughput compounds across many micro-interactions per session and translates into recovered developer time. The value depends on the developer actively waiting; for the same task run in the background, the premium is not justified.

02

Real-time UI and prototype generation
‍

Generating large UI components or prototypes live, where faster token streaming keeps a designer or engineer in flow, benefits from Fast Mode's higher output rate. Opus 4.7's strong coding benchmarks (87.6% SWE-bench Verified) mean quality is not traded for speed. Because TTFT is unchanged, the gain is proportional to output length — long generations benefit most, short ones little.

03

Latency-sensitive agentic coding (short-term)
‍

For coding agents inside Claude Code, Cursor, or custom pipelines where an operator monitors long runs, Fast Mode shortened perceived completion time while preserving Opus 4.7's reliable multi-step tool use and lower looping rate. This is only advisable as a transitional workload: with removal scheduled for July 24, 2026, durable agent pipelines should move to Opus 4.8 Fast Mode.

04

High-resolution document and diagram review
‍

Opus 4.7 processes images up to 2,576 pixels on the long edge — over 3x prior Claude models — enabling dense screenshot reading, complex diagram extraction, and fine-print document analysis. Fast Mode delivers those interpretations faster during interactive review. For automated, unattended document pipelines, standard speed is the more economical choice since no human is waiting on output.

Pricing in anytokens via AnyAPI
Input
180
₳
Output
900
₳
Cache write
—
₳
Cache read
—
₳
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PerformanceBenchmarksTechnical SpecificationsComparisonLimitations & Trade-offsBest-Fit WorkloadsIntegrationFAQ

Integration

Access Claude Opus 4.7 (Max) via AnyAPI.ai

Access Claude Opus 4.7 (Max) through AnyAPI.ai using a unified API built for multi-model AI applications. Integrate Claude Opus 4.7 (Max) without maintaining a separate provider-specific connection, and keep the flexibility to test, switch, or combine models as your application requirements evolve.

01

One API integration

Access Claude Opus 4.7 (Max) and other AI models through the same API workflow instead of maintaining separate integrations for every provider.

02

Easy model switching

Test Claude Opus 4.7 (Max) against alternative models or switch models as your performance, capability, or cost requirements change without rebuilding your application around another provider API.

03

Flexible for production

Use Claude Opus 4.7 (Max) from experimentation through production while keeping your AI stack flexible as workloads, traffic, and model requirements evolve.

04

Multi-model applications

Use Claude Opus 4.7 (Max) for the workloads where it performs best and combine it with other models for tasks that require different capabilities, performance, or efficiency.

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Frequently Asked Questions

Answers to common questions about integrating and using this AI model via AnyAPI.ai

No. Fast Mode is a serving-level configuration, not a separate model. The weights, intelligence, benchmark scores, and 1M-token context window are identical to standard Opus 4.7. Fast Mode only changes how quickly output tokens are generated — up to 2.5x faster — and the per-token price. Quality is unchanged.

Fast Mode on Opus 4.7 was deprecated on June 25, 2026, with removal scheduled for July 24, 2026. After removal, sending speed:"fast" with claude-opus-4-7 returns an error rather than falling back to standard speed. Anthropic directs teams to Opus 4.8 Fast Mode, which offers a better model at a lower price for equivalent speed.

Only partially. Fast Mode increases output tokens per second by up to 2.5x, but it does not improve time to first token, independently measured around 10.65 seconds for Opus 4.7. The gain applies to long generations a user watches stream, not to short responses or first-token-sensitive applications.

The context window is 1 million tokens, identical to standard Opus 4.7, with flat pricing across the full window. Maximum output is 128K tokens on the synchronous Messages API, extendable to 300K on the Batch API via a beta header — though the Batch API does not support Fast Mode.

It was justified only for interactive, developer-in-the-loop work — live debugging, rapid iteration, real-time UI generation — where recovered waiting time offset the cost. For batch jobs, CI/CD pipelines, or unattended long-running agents, standard Opus 4.7 delivered the same output far more cheaply, since no one experiences the speed.

* Benchmark data source: Artificial Analysis artificialanalysis.ai