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Radar · Sep 23, 2026

Anthropic launches Claude Opus 5.5 with lower prices and tighter safeguards

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News × data

The story published out there and, below it, what real token traffic from the last 7 days says about who is in it. The headline opens the original article; the model name opens its page here.

Launch ·

Anthropic launches Claude Opus 5.5 with lower prices and tighter safeguards

According to TechCrunch, Anthropic called Opus 5.5 "the strongest-performing model we've tested to date" and lowered its prices. According to The Verge, the new version comes with stricter safeguards against risky behaviors, including attempts to escape the company's testing sandbox. According to Tecnoblog, the model promises to match Mythos 5.1's performance in cybersecurity and biology work.

Changes in the data

Leadership · Z.ai (GLM)

GLM 5.3 Flash took the lead in traffic

13.7% of traffic over the last 7 days. The previous leader was DeepSeek V4.1 Flash, now at 13.3%.

See GLM 5.3 Flash on Model Season →
Price · Z.ai (GLM)

GLM 5.3 Flash got 67% more expensive

From $0.14 to $0.24 per 1M tokens, blended. Input $0.090 → $0.150, output $0.30 → $0.50. New price since Sep 22.

What the data says. The model has 13.72% of traffic over the last 7 days, ranked 1st. Z.ai (GLM) has 15.5% of tokens and 6.4% of estimated spend this week.

See GLM 5.3 Flash on Model Season →
Price · DeepSeek

DeepSeek V4 Flash 0731 got 280% more expensive

From $0.050 to $0.190 per 1M tokens, blended. Input $0.040 → $0.040, output $0.080 → $0.640. New price since Sep 22.

What the data says. The model has 7.24% of traffic over the last 7 days, ranked 4th. DeepSeek has 27.0% of tokens and 6.2% of estimated spend this week. The lab's most used model is DeepSeek V4.1 Flash, with 13.28% at $0.26 per 1M, and this one costs 1.4 times less.

See DeepSeek V4 Flash 0731 on Model Season →
Catalog · OpenAI

GPT-6 Luna Pro is now in the catalog

OpenAI, $0.10 input and $0.50 output per 1M tokens, 1M context and optional reasoning. No traffic volume measured yet.

What the data says. OpenAI has 12.4% of tokens and 36.3% of estimated spend this week. The lab's most used model is GPT-5.6 Luna, with 6.45% at $0.45 per 1M, and this one costs 2.3 times less.

See GPT-6 Luna Pro on Model Season →
Catalog · OpenAI

GPT-6 Sol is now in the catalog

OpenAI, $2.00 input and $10.00 output per 1M tokens, 1M context and optional reasoning. No traffic volume measured yet.

What the data says. OpenAI has 12.4% of tokens and 36.3% of estimated spend this week. The lab's most used model is GPT-5.6 Luna, with 6.45% at $0.45 per 1M, and this one costs 8.9 times more.

See GPT-6 Sol on Model Season →

Other changes

  • CatalogGPT-6 Sol Pro is now in the catalog. OpenAI, $2.00 input and $10.00 output per 1M tokens, 1M context and optional reasoning. No traffic volume measured yet.
  • CatalogClaude Opus 5.5 is now in the catalog. Anthropic, $4.00 input and $20.00 output per 1M tokens, 1M context and mandatory reasoning. No traffic volume measured yet. See model →
  • CatalogMing Image 0.1 Design is now in the catalog. InclusionAI, $0.0000 input and $0.0000 output per 1M tokens and open weights. No traffic volume measured yet.
  • CatalogSolar Mini 4 is now in the catalog. Upstage, $0.050 input and $0.20 output per 1M tokens, 512k context and optional reasoning. No traffic volume measured yet.
  • CatalogUniversal-3.5 Pro is now in the catalog. Assemblyai and $62.50 input and $0.0000 output per 1M tokens. No traffic volume measured yet.
  • CatalogCommand A+ is now in the catalog. Cohere, $0.30 input and $1.50 output per 1M tokens, 188k context and optional reasoning. No traffic volume measured yet.
  • CatalogGPT-6 Luna is now in the catalog. OpenAI, $0.10 input and $0.50 output per 1M tokens, 1M context and optional reasoning. No traffic volume measured yet. See model →
  • CatalogQwen3.8 Omni Flash is now in the catalog. Qwen, $0.15 input and $0.47 output per 1M tokens, 1M context and optional reasoning. No traffic volume measured yet.
  • PriceKimi K3 got 77% more expensive. From $3.40 to $6.00 per 1M tokens, blended. Input $1.70 → $3.00, output $8.50 → $15.00. New price since Sep 22. See model →
  • TrafficMiMo-V2.6-Flash debuted in traffic. First volume recorded on Sep 22, 2026, 1 day after entering the catalog, with 0.11% of traffic over the last 7 days. See model →
  • TrafficMiMo-V2.6-Pro debuted in traffic. First volume recorded on Sep 22, 2026, 1 day after entering the catalog, with 0.14% of traffic over the last 7 days. See model →
  • TrafficGPT-6 Luna debuted in traffic. First volume recorded on Sep 22, 2026, 0 days after entering the catalog, with 0.05% of traffic over the last 7 days. See model →
  • TrafficGrok 4.7 debuted in traffic. First volume recorded on Sep 22, 2026, 1 day after entering the catalog, with 0.04% of traffic over the last 7 days. See model →
  • TrafficGLM 5.3 FlashX debuted in traffic. First volume recorded on Sep 22, 2026, 4 days after entering the catalog, with 0.05% of traffic over the last 7 days. See model →
  • PriceDeepSeek V4 Pro 0423 got 40% cheaper. From $2.00 to $1.19 per 1M tokens, blended. Input $1.60 → $0.96, output $3.20 → $1.91. New price since Sep 22. See model →
  • PriceQwen3.8 27B got 34% more expensive. From $0.80 to $1.06 per 1M tokens, blended. Input $0.21 → $0.42, output $2.55 → $3.00. New price since Sep 22. See model →
  • PriceNemotron 3 Nano 30B A3B got 17% cheaper. From $0.105 to $0.087 per 1M tokens, blended. Input $0.060 → $0.050, output $0.24 → $0.20. New price since Sep 22. See model →
  • AliasGPT Luna Latest now points to GPT-6 Luna. It used to point to openai/gpt-5.6-luna. Anyone using the alias now gets a different model without changing a line of code.
  • AliasGPT Sol Latest now points to GPT-6 Sol. It used to point to openai/gpt-5.6-sol. Anyone using the alias now gets a different model without changing a line of code.
  • AliasClaude Opus Latest now points to Claude Opus 5.5. It used to point to anthropic/claude-opus-5. Anyone using the alias now gets a different model without changing a line of code.

In the news: summaries written by AI using only what the cited sources published, reviewed before going live. The numbers in the “The data” strip come from our data, traffic from the last 7 days, never from the summary. Catalog snapshot of Sep 23, 2026, compared with the previous ones since Sep 16, 2026. Traffic through Sep 22, 2026. Price is a 75% input and 25% output blend, and only becomes news when the new value holds for two snapshots. Order follows a fixed relevance formula that weighs the type of change and the model’s share.